PDI Platform Developer I (SP24) Questions and Answers

• By providing device-awareness for mobile and desktops. This is true because the Lightning Component framework is a UI framework for developing Lightning components for mobile and desktop devices. Lightning web components and Aura components can coexist and interoperate on a page. The framework takes care of rendering the components appropriately for different devices and screen sizes1.
• By providing an Agile process with default steps. This is false because the Lightning Component framework does not provide any specific process or methodology for developing solutions. Developers can use any process that suits their needs, such as Agile, Waterfall, or Scrum2.
• By providing code review standards and processes. This is false because the Lightning Component framework does not provide any code review standards or processes. Developers are responsible for ensuring the quality and maintainability of their code, and they can use tools such as code analysis, testing, and debugging to help them3.
• By providing change history and version control. This is false because the Lightning Component framework does not provide any change history or version control features. Developers can use tools such as Git, SVN, or Salesforce DX to manage their source code and track changes.

References:

• 1: Introducing Aura Components
• 2: Agile Development with Salesforce
• 3: Code Quality and Code Analysis
• : Source Control and Salesforce Development

The correct option is C, which includes the import statement for an Apex method named updateAccounts in the class AccountController. In Salesforce, to use an Apex method in a Lightning Web Component (LWC), you need to import it using a specific syntax. The syntax includes the import keyword followed by the method name from '@salesforce/apex/ClassName.MethodName'. This makes the Apex method available for use within the LWC. References:

• 1: Order of Execution (Apex Developer Guide)
• 2: Use a Static Resource (Lightning Web Components Developer Guide)
• 3: Call Apex Methods | Lightning Web Components Developer Guide …
• 4: Wire Apex Methods to Components | Lightning Web Components Developer …
• 5: How to call the apex method in lightning web component
• 6: Using Apex | Lightning Aura Components Developer Guide | Salesforce …

The correct answer is option C. The Lightning code segment that should be written to declare dependencies on a Lightning component, c:accountList, that is used in a Visualforce page is:

This code segment uses the ltng:require tag, which is a base Lightning component that allows you to load external JavaScript libraries and stylesheets in your Lightning components. The scripts attribute specifies the name and path of the JavaScript file that is uploaded as a static resource. The afterScriptsLoaded attribute specifies the name of the client-side controller action that is called after the scripts are loaded. This way, you can ensure that the c:accountList component has access to the JavaScript library that it depends on.

The other options are not valid code segments for declaring dependencies on a Lightning component. Option A uses the ltng:dependency tag, which is used to declare dependencies between Lightning components, not between a Lightning component and a JavaScript library. Option B uses the ltng:include tag, which is not a valid tag in the Lightning component framework. Option D uses the ltng:import tag, which is also not a valid tag in the Lightning component framework.

References: ltng:require - documentation, Using External JavaScript Libraries, Prepare for Your Salesforce Platform Developer I Credential

Component and application events are two types of events that can be used to communicate between components in Lightning. Component events are handled by the component that fired the event or a component in its containment hierarchy. Application events are handled by any component that is listening to the event, regardless of where it is in the DOM1. Some of the best practices when it comes to component and application event handling are:

• Reuse the event logic in a component bundle, by putting the logic in the helper. This practice allows the developer to avoid duplicating code and to maintain consistency and modularity. The helper class can contain common methods that can be invoked by the controller or the renderer of the component2.
• Handle low-level events in the event handler and re-fire them as higher-level events. This practice allows the developer to abstract away the details of the low-level events and provide a more meaningful and relevant event for the consumers. For example, a component can handle a mouse click event and re-fire it as a select event with additional data3.

The other options are not best practices because:

• Use component events to communicate actions that should be handled at the application level. This practice is not recommended, because component events are scoped to the component that fired them or its parents. If the action should be handled by a component that is not in the same containment hierarchy, the component event will not reach it. Application events are more suitable for cross-component communication1.
• Try to use application events as opposed to component events. This practice is not advisable, because application events are broadcast to all components that are listening to them, which can cause performance issues and unwanted side effects. Component events are more efficient and secure, as they are only handled by the relevant components1.

References:

• : Communicating with Events
• : Helper Functions
• : Advanced Events Example

The correct statement is D, because it uses the SOSL syntax to search for the phrase ‘ACME’ in all fields of the Contact and Lead objects, and returns a list of sObjects that match the criteria. The other statements are incorrect because:

• A uses the SOQL syntax, which can only query one object at a time, and the LIKE operator requires a wildcard character (%) before and after the search term.
• B uses the SOSL syntax, but returns a list of lists of sObjects, which is not the expected output.
• C uses the SOSL syntax, but returns a map of sObjects, which is not the expected output. References:
• SOSL Syntax - Salesforce
• SOSL Statements - Salesforce
• SOQL and SOSL Reference - Salesforce

 To override the Contact’s Edit button and provide custom user interfaces in both Salesforce Classic and Lightning Experience, the developer should use a Visualforce page in Salesforce Classic and a Lightning component in Lightning Experience. This is because Visualforce pages are supported as overrides in Salesforce Classic, but not in Lightning Experience or mobile. On the other hand, Lightning components are supported as overrides in Lightning Experience and mobile, but not in Salesforce Classic. Therefore, the developer needs to use different technologies for different user interfaces. The developer can specify the override type and the page or component to use for each user interface in the Buttons, Links, and Actions settings of the Contact object. References: Override Standard Buttons and Tab Home Pages, Standard Actions and Overrides Basics, Override Buttons, Links, and Tabs with Visualforce

A. if (Schema.sObjectType.Contact.isUpdatable()) - This checks if the Contact object is updatable for the current user. B. if (Schema.sObjectType.Contact.fields.Is_Active__c.isUpdateable()) - This checks if the Is_Active__c field on the Contact object is updatable for the current user.

These checks should be performed before executing DML statements to ensure that security is not bypassed.

C and D are incorrect because: C. It only checks if the Contact object is accessible, not whether it’s updatable. D. Checking ownership does not necessarily enforce field-level and object-level permissions.

References:

• Apex Developer Guide
• Trailhead: Data Security

I also noticed that you sent me an image along with your question. It seems to be a snippet of code written in Apex, which is used for Salesforce development. It shows a public method named updateContact that accepts a Contact object as a parameter. Inside this method, there’s an assignment operation where Is_Active__c field of thisContact object is set to false. A try/catch block follows where an attempt to update thisContact record occurs within try; any exceptions caught during this process are handled in catch block. If an exception occurs during update operation, an error message string gets concatenated with exception’s message and displayed using ApexPages.addmessage.

If you are looking for more resources to study for the Platform Developer I exam, you can check out the following links from my web search results:

• Free Salesforce Platform Developer 1 Practice Exam (With Answers): This is a website that offers 60-question practice exam with answers and explanations, written by a Salesforce Developer.
• SALESFORCE CERTIFIED PLATFORM DEVELOPER I: This is a PDF document that provides the exam guide, sample questions, and answers for the certification exam.
• Salesforce Platform Platform Developer I Exams – Courses: This is a website that offers 4 full-length practice exams with 60 questions each, written by a Salesforce Developer

Custom exceptions in Apex are user-defined exception classes that can have their own member variables, methods, constructors, and interfaces. They must extend the system Exception class and have a class name that ends with “Exception”. They cannot extend other classes besides the Exception class. Custom exceptions enable more detailed error messages and custom error handling in catch blocks. They can also be rethrown as inner exceptions to preserve the stack trace information.

References:

• Create Custom Exceptions | Apex Developer Guide
• Exception Class and Built-In Exceptions | Apex Reference Guide
• Handling Exceptions in Apex: Creating and Using Custom Exceptions
• Custom Or User-Defined Exception In Apex | Salesforce Developer Tutorials
• Using custom exception types | Mastering Apex Programming

Cascading delete operations occur when a record that has a master-detail relationship with another record is deleted, and the child records are also deleted as a result. This action may cause triggers to fire on both the parent and the child records, depending on the trigger definition and the operation type. For example, if a trigger is defined on the child object to execute after delete, it will fire when the parent record is deleted and the child records are cascaded. Similarly, if a trigger is defined on the parent object to execute before delete, it will fire when the parent record is deleted and before the child records are cascaded. However, updates to feed items, renaming or replacing a picklist entry, and changing a user’s default division do not directly cause triggers to fire, unless they are part of a larger transaction that involves a DML operation on a trigger-enabled object. References: Triggers and Merge Statements, Triggers and Recovered Records, Triggers

 A developer should use the FIND clause with the IN Name Fields option to obtain the Id and Name of all the Leads, Accounts, and Contacts that have the company name “Universal Containers”. The FIND clause allows you to perform text searches in Salesforce data, similar to searching with a search engine1. The IN Name Fields option specifies that the search should look for matches in the Name fields of the objects2. The RETURNING clause specifies which objects and fields to return in the search results3. The syntax of the FIND clause is as follows:

FIND {searchString} [IN searchGroup] [RETURNING fieldSpec [ORDER BY orderBySpec] [LIMIT limitSpec] [OFFSET offsetSpec]]

For example, the following query returns the Id and Name of all the Leads, Accounts, and Contacts that have the company name “Universal Containers”:

FIND ‘Universal Containers’ IN Name Fields RETURNING lead(id, name), account(id, name), contact(id, name)

Option B is incorrect, because there is no such option as IN CompanyName Fields in the FIND clause. The valid options for the IN clause are ALL FIELDS, NAME FIELDS, EMAIL FIELDS, PHONE FIELDS, and SIDEBAR FIELDS2.

Option C is incorrect, because it is not a valid SOQL query. SOQL stands for Salesforce Object Query Language, which is a different way of querying Salesforce data than the FIND clause. SOQL queries use the SELECT statement to specify the fields and objects to retrieve, and the WHERE clause to filter the records based on certain criteria. However, SOQL queries cannot query multiple objects in a single statement, unless they are related by a relationship. Therefore, the query in option C would result in a syntax error, as it tries to query Lead, Account, and Contact objects in the same statement, without specifying any relationship.

Option D is incorrect, because it is also not a valid SOQL query. Apart from the same issue as option C, it also has a typo in the WHERE clause, as it uses an asterisk (*) instead of an equal sign (=) to compare the CompanyName field with the value “Universal Containers”.

References:

• FIND | SOQL and SOSL Reference | Salesforce Developers
• IN | SOQL and SOSL Reference | Salesforce Developers
• RETURNING | SOQL and SOSL Reference | Salesforce Developers
• [Salesforce Object Query Language (SOQL) | SOQL and SOSL Reference | Salesforce Developers]
• [Relationship Queries | SOQL and SOSL Reference | Salesforce Developers]

The test method fails in the sandbox test framework because it relies on existing data in the sandbox, which may not be consistent or available for the test execution. The Apex test framework uses a separate test data context that is rolled back after the test execution, so any data that is queried or inserted by the test method must be created within the test method or by using the @testSetup annotation. The Execute Anonymous window, on the other hand, runs the Apex logic in the current user context and can access the existing data in the sandbox. Therefore, the Apex logic may succeed in the Execute Anonymous window but fail in the test framework. References:

• Apex Testing (Salesforce Developer Documentation)
• Isolation of Test Data from Organization Data in Unit Tests (Salesforce Developer Documentation)
• Free Salesforce Platform Developer 1 Practice Exam (With Answers) (Salesforce Ben)

The Trigger.old context variable returns a list of the old versions of the sObject records. This sObject list is only available in update and delete triggers1. In a before insert trigger, there are no old versions of the records, so the Trigger.old context variable is null2. References:

• 1: Trigger Context Variables | Apex Developer Guide | Salesforce Developers
• 2: Get Started with Apex Triggers Unit | Salesforce Trailhead

The developer should use the Lightning:flow tag to display the flow in the Aura component. The Lightning:flow tag is a base Lightning component that allows you to embed a flow in an Aura component and interact with it programmatically. The Lightning:flow tag has attributes that let you specify the name of the flow, pass input values to the flow, handle the flow status change event, and control the flow navigation. The Lightning:flow tag supports only screen flows and autolaunched flows.

The other options are not valid tags for displaying a flow in an Aura component. There is no such tag as Lightning-flow or Aura:flow. The aura:component tag is the root tag of the Aura component hierarchy, but it does not display a flow by itself.

References: lightning:flow - documentation, Use Aura Components with Flows, Prepare for Your Salesforce Platform Developer I Credential

Using the Database method with all or None set to false allows the developer to insert the Task records without throwing an exception if some of them fail. This way, the integration can read the task records that were successfully inserted, and the developer can handle the failed records in the trigger or elsewhere. The other options are either too disruptive to the business logic (A and C) or do not prevent the exception from occurring (B). References: Database Methods, Bulk Exception Handling, Trigger Exceptions

• Rollup summary fields can cause the parent record to go through Save. This is true because when a child record is created, updated, or deleted, the parent record is also updated to reflect the changes in the rollup summary field. This update can cause the trigger on the parent object to fire again, which can affect the performance and logic of the trigger1.
• The trigger may fire multiple times during a transaction. This is true because triggers can be invoked by other triggers, workflow rules, or processes in the same transaction. This can result in multiple trigger executions for the same record, which can also affect the performance and logic of the trigger2.
• Duplicate rules are executed once all DML operations commit to the database. This is false because duplicate rules are executed before the DML operations are committed to the database. Duplicate rules are part of the validation rules that are run before the triggers3.
• The validation rules will cause the trigger to fire again. This is false because validation rules are run before the triggers, and they do not cause the triggers to fire again. Validation rules only prevent the record from being saved if the validation fails4.

References:

• 1: Roll-Up Summary Fields
• 2: Triggers and Order of Execution
• 3: Duplicate Management
• 4: Validation Rules

A SOQL query can return a list of sObjects, a list of primitive data types, or a list of lists of primitive data types. A list is a collection of elements of the same data type. An sObject is a generic abstract type that corresponds to any Salesforce object, such as Account, Contact, or custom objects. A primitive data type is a basic data type, such as String, Boolean, Integer, Double, Date, or DateTime. A long is not a valid data type in Apex or SOQL, and an integer is a subtype of double, so they are not distinct return types for a SOQL query. References: Salesforce Object Query Language (SOQL), SOQL SELECT Syntax

An Assignment Flow element is a logic element that allows you to set values in variables, collection variables, record variables, record collection variables, and global variables1. You can use an Assignment Flow element to assign the support representative name to the custom field on the Case object based on the case origin. This way, you can automate the case assignment process without writing any code or using any formula. A trigger, a formula field, and a validation rule are not the best solutions for this scenario, as they either require code, are not dynamic, or do not change the field value. References: 1: Flow Element: Assignment - Salesforce

A scratch org is a temporary Salesforce instance, typically used for a specific development. To create and manage scratch orgs, a developer needs to enable the Dev Hub feature in a Salesforce org. The Dev Hub org acts as a central hub for creating and tracking scratch orgs. The Dev Hub org can be a production org, a developer edition org, or a business org. The Dev Hub feature is not available in sandboxes or environment hubs. References: Scratch Orgs | Salesforce DX Developer Guide, Get Started With Salesforce Scratch Orgs

QUESTIN NO: 4

A developer must implement a CheckPaymentProcessor class that provides check processing payment capabilities that adhere to what defined for payments in the PaymentProcessor interface. public interface PaymentProcessor { void pay(Decimal amount); } Which is the correct implementation to use the PaymentProcessor interface class?

A. Public class CheckPaymentProcessor implements PaymentProcessor {

public void pay(Decimal amount) {}

}

B. Public class CheckPaymentProcessor implements PaymentProcessor {

public void pay(Decimal amount);

}

C. Public class CheckPaymentProcessor extends PaymentProcessor {

public void pay(Decimal amount);

}

D. Public class CheckPaymentProcessor extends PaymentProcessor {

public void pay(Decimal amount) {}

}

Answer: A

To use the PaymentProcessor interface class, the CheckPaymentProcessor class must implement the interface using the implements keyword and provide a concrete implementation of the pay method with the same signature as defined in the interface. The extends keyword is used for inheritance, not for implementing interfaces. The pay method must have a body with curly braces, not a semicolon. References:

• Get Started with Platform Developer I Study Guide - Salesforce
• Certification - Platform Developer I - Trailhead
• SALESFORCE CERTIFIED PLATFORM DEVELOPER I

An error condition formula on a validation rule on Opportunity is the automation that allows the developer to satisfy the requirement in the most efficient manner. A validation rule is a declarative feature that allows you to define criteria for data quality and integrity. It can prevent users from saving records that do not meet the specified conditions. In this case, the developer can create a validation rule on the Opportunity object that checks if the user profile is not Sales Manager, the Opportunity Status is Closed Lost, and the lost reason is blank. If these conditions are true, the validation rule can display an error message and prevent the record from being saved12.

References:

• 1: Validation Rules
• 2: Cert Prep: Platform Developer I: Data Modeling and Management

To support split shipments, a developer should add an Order_shipment_Group_c object and a master-detail field on Order_Line_c. The Order_shipment_Group_c object represents a group of order lines that share the same delivery method and destination address1. The master-detail field on Order_Line_c establishes a relationship between each order line and its corresponding order shipment group. This way, the shipping information can be stored in the Order_shipment_Group_c object instead of the Order_c object, and any number of order lines on a single order can be shipped to different locations.

References:

• OrderDeliveryGroup | Object Reference for the Salesforce Platform | Salesforce Developers

 To create a CreditcardPayment class that provides an implementation of an existing Payment class, the developer should use the extends keyword to indicate that CreditcardPayment is a subclass of Payment, and the override keyword to indicate that CreditcardPayment provides a different implementation of the makePayment method than the superclass. This way, the CreditcardPayment class inherits the properties and methods of the Payment class, but can also modify or add its own behavior.

The other options are not correct because:

• B. Public class CreditCardPayment implements Payment. This option is not valid, because the implements keyword is used to indicate that a class implements an interface, not another class. An interface is a collection of abstract methods that a class must define, but a class is a blueprint for creating objects that have properties and methods.
• C. Public class CreditCardPayment extends Payment. This option is not valid, because it does not use the override keyword to provide a different implementation of the makePayment method. Without the override keyword, the subclass would inherit the same implementation of the method as the superclass, which defeats the purpose of creating a subclass.
• D. Public class CreditCardPayment implements Payment. This option is not valid, because it has the same problem as option B. It uses the implements keyword instead of the extends keyword, which is incorrect for creating a subclass of another class.

References:

• : Inheritance
• : Interfaces

The correct answer is to use the with sharing keyword in the Apex class. This keyword enforces the sharing rules that apply to the current user. This means that the Apex code respects the user’s permissions, field-level security, and sharing rules when querying or modifying records. This ensures that only records accessible to the currently logged in user are displayed. References: Apex Developer Guide

The correct answer is option C. In Salesforce, a custom SOAP Web Service is defined using Apex with annotations that enable classes and methods to be exposed as web service endpoints. Helper methods that are not used by the Web Application should not be declared as webservice. They can be private or public but should not have the webservice keyword in their declaration. The webservice keyword is specifically for methods that are exposed to external applications via SOAP API.

References: The information can be referenced from the official Salesforce documentation on creating custom web services with Apex: Creating Custom Web Services.

 A developer can use a validation rule or a trigger to prevent Opportunities from being edited when they reach the Closed/Won stage. A validation rule can check the stage value and display an error message if the user tries to modify the record. A trigger can also check the stage value and throw an exception if the user tries to update the record. Both of these strategies can enforce the business logic at the database level and prevent unwanted changes.

An after-save flow or the Process Automation settings are not suitable for this requirement, because they are executed after the record is saved to the database. They can perform actions based on the record changes, but they cannot prevent the record from being edited in the first place.

References:

• 1: Validation Rules (Salesforce Help)
• 2: Triggers (Apex Developer Guide)
• 3: Run Flows After a Record Is Saved (Lightning Flow Developer Guide)
• 4: Process Automation Settings (Salesforce Help)

Scratch orgs are short-term Salesforce environments that you can spin up to work on a feature. They are source-driven, disposable, and fully configurable. To create scratch orgs, you need to use the Salesforce CLI, which is a command-line tool that lets you interact with Salesforce orgs and perform various tasks. You can use the Salesforce CLI to create a scratch org definition file, which specifies the features and settings of the scratch org, and then run the force:org:create command to create the scratch org. You can also use the force:org:open command to open the scratch org in a browser without logging in.

References: The use of Salesforce CLI to create scratch orgs can be referenced in the Salesforce Platform Developer I learning documents, specifically in modules that cover Salesforce DX and scratch orgs, such as:

• Get Started with Salesforce DX
• Scratch Orgs
• Develop in Scratch Orgs

The provided code snippet is trying to update more than 200 Account records that belong to the ‘Technology’ industry in a single transaction. In Salesforce, there are governor limits that restrict the number of records that can be processed synchronously in a single transaction to prevent overconsumption of resources. If this limit is exceeded, the transaction will fail. This applies to both synchronous (D) and asynchronous (A) transactions.

References: The governor limits are well documented in Salesforce’s developer guide and official documentation. You can refer to these documents for detailed information on various types of governor limits including DML, SOQL, and record processing limits.

• Apex Developer Guide - Governor Limits
• Salesforce Developer - Execution Governors and Limits

The developer should use an external ID field to ensure the data being integrated is matched to the right records in Salesforce. An external ID field is a custom field that has the External ID attribute, meaning that it contains unique record identifiers from a system outside of Salesforce. When you integrate with an external system, you can use an external ID field to match records based on the external system’s ID, rather than the Salesforce ID. This way, you can avoid creating duplicate records or updating the wrong records. An external ID field can also be used as a relationship field to relate records to other objects. A lookup field is a relationship field that allows users to select a record from another object. A formula field is a read-only field that derives its value from a formula expression. An external object is a custom object that maps to data stored outside Salesforce, such as in an external database. These options are not relevant to matching records based on an external system’s ID. References:

• Salesforce Help: External ID Fields, page 1
• Trailhead: Platform Developer I Certification Study Guide: Data Modeling, unit 2

• Add a new Create Records element. This is true because the developer needs to create a new Contact record and store its ID on the Opportunity record. A Create Records element allows the developer to create one or more records of a specific object type and assign values to the fields of those records1.
• Add a new Get Records element. This is false because the developer does not need to query any existing records from the database. A Get Records element allows the developer to find and store one or more records of a specific object type that meet certain criteria2.
• Add a new Update Records element. This is false because the developer already has an Update Records element in the flow that updates the Opportunity record. A Update Records element allows the developer to update one or more records of a specific object type that meet certain criteria3.
• Add a new Roll back Records element. This is false because the developer does not need to undo any changes made by the flow. A Roll back Records element allows the developer to roll back the changes made by the flow to the database if an error occurs.

References:

• 1: Create Records
• 2: Get Records
• 3: Update Records
• : Roll Back Records

 To make an Apex method available to be wired to a property in a Lightning web component, the developer should use the @AuraEnabled annotation with the cacheable parameter set to true. This indicates that the method is meant to be used in a read-only manner and that the results can be cached on the client. This improves the performance and user experience of the Lightning web component. The @RemoteAction annotation is used for Visualforce remoting, not for Lightning web components. The @AuraEnabled annotation without the cacheable parameter is used for imperative Apex methods that are invoked from a Lightning web component’s JavaScript controller. The @RemoteAction(cacheable=true) annotation is not valid syntax. References: Call Apex Methods, Apex Annotations

The correct answer is to move all of the logic to a Queueable class that queries for and updates the Assets and call it from the trigger. This is because when dealing with bulk data, triggers can often hit governor limits. By utilizing a Queueable class, the developer can perform asynchronous processing which helps in handling more records and avoiding hitting governor limits. References: The Salesforce Platform Developer I Learning documents emphasize on understanding the governor limits and how to write efficient code that can handle bulk data without hitting these limits. Asynchronous processing like Batch Apex, Future methods, or Queueable Apex is often recommended for bulk data handling. You can find more information on these topics in the following links: Apex Developer Guide, Trailhead

 Salesforce CLI is a command-line interface that allows developers to create, test, and deploy code and configurations to any Salesforce environment1. Salesforce CLI is the recommended tool for deploying custom Apex code and Lightning Components, as it provides more flexibility, control, and automation than other deployment methods2. Salesforce CLI can also integrate with source control systems, such as Git, to enable version control and collaboration among developers3. Using a change set is another option to deploy code and configurations from one Salesforce org to another, but it has some limitations, such as requiring a deployment connection, not supporting all metadata types, and not allowing selective deployment of components4. Using the Force.com IDE or the Ant Migration Tool are also possible ways to deploy code and configurations, but they are less user-friendly and require more manual steps than Salesforce CLI5 . References:

• Salesforce CLI | Salesforce Developer Tools
• Deploy Your Code with Salesforce CLI | Salesforce Trailhead
• Manage Projects with Salesforce DX | Salesforce Trailhead
• Change Sets | Salesforce Trailhead
• Force.com IDE | Salesforce Developer Tools
• [Ant Migration Tool | Salesforce Developer Tools]

The correct answer is D because it uses the StandardSetController class, which provides built-in pagination support for Visualforce pages. The StandardSetController can be initialized with a list of sObjects, a SOQL statement, or the ID of a filter. It also provides methods to navigate through the pages of data, such as first(), last(), next(), and previous(). By using the StandardSetController, the developer can avoid hitting the view state limit, which is 135 KB for Visualforce pages. The view state is the amount of data that is persisted between page requests. It includes the component tree, component attributes, and controller state. The StandardSetController reduces the view state size by storing only the current page of data in the view state, and not the entire data set.

The other options are incorrect because they do not provide an efficient or reliable way to implement pagination for Visualforce pages. Option A uses lazy loading and a transient list variable, which are not recommended for pagination. Lazy loading is a technique that defers loading data until it is needed, which can improve the initial page load time, but it can also cause performance issues if the data set is large or complex. A transient list variable is a variable that is not stored in the view state, which can reduce the view state size, but it can also cause data loss or inconsistency if the page is refreshed or redirected. Option B uses JavaScript remoting with SOQL offset, which is not a good practice for pagination. JavaScript remoting is a technique that allows Visualforce pages to communicate with Apex controllers using asynchronous JavaScript calls. SOQL offset is a clause that allows skipping a specified number of rows in a query result. However, JavaScript remoting has some limitations, such as the maximum size of the response payload (15 MB) and the maximum number of remoting calls per page (10). SOQL offset also has some limitations, such as the maximum offset value (2,000) and the performance impact of skipping many rows. Option C implements pagination with an OffsetController, which is a custom controller that uses the SOQL offset clause to paginate the data. This option has the same drawbacks as option B, as it relies on the SOQL offset clause, which is not a scalable or performant solution for pagination. References:

• Trailhead: Pagination with a StandardSetController
• Trailhead: Visualforce View State
• Salesforce Developer Guide: StandardSetController Class
• [Salesforce Developer Guide: JavaScript Remoting for Visualforce]
• [Salesforce Developer Guide: SOQL OFFSET Clause]

To check the code coverage of a class after running all tests, the developer should view the code coverage percentage for the class using the Overall Code Coverage panel in the Developer Console Tests tab. This panel shows the code coverage for each class and trigger in the org, as well as the overall code coverage percentage. The developer can also double-click on a class or trigger name to see the code coverage details, such as which lines are covered or not covered by tests.

The other options are not correct because:

• A. View the Code Coverage column in the list view on the Apex Classes page. This option only shows the code coverage percentage for each class, but not the details of which lines are covered or not covered by tests. It also does not show the code coverage for triggers or the overall code coverage percentage.
• B. View the Class Test Percentage tab on the Apex Class fist view m Salesforce Setup. This option does not exist in Salesforce Setup. There is no such tab or view for Apex classes.
• D. Select and run the class on the Apex Test Execution page in the Developer Console. This option only runs the test methods in the selected class, but does not show the code coverage for the class or other classes and triggers in the org.

References:

• : Testing and Code Coverage
• : Developer Console

To communicate from a child component to a parent component, the best option is to create a custom event in the child component and dispatch it to the parent component. The parent component can then listen for the event and handle it accordingly. For example, the child component can create a custom event called navigate and pass the page reference as a detail. The parent component can then use a handler to catch the event and use the navigation service to navigate to the next page.

Option A is incorrect because firing a notification is not a reliable way to communicate between components, as it depends on the user’s settings and preferences. Option B is incorrect because updating a property on the parent component requires the child component to have access to the parent’s property, which violates the principle of component encapsulation and modularity. Option C is incorrect because calling a method in the Apex controller is not necessary for navigation purposes, and it would introduce an extra server round-trip and potential performance issues.

References: Communicate with Events | Lightning Web Components Developer Guide, Basic Navigation | Lightning Web Components Developer Guide, Cert Prep: Platform Developer I: Lightning Web Components

Adding system.debug statements to the code is a common and effective way to troubleshoot issues with Apex triggers. System.debug statements allow the developer to log messages, variables, or expressions to the debug log, which can be viewed in the Developer Console or other tools1. By adding system.debug statements at strategic points in the trigger code, the developer can track the execution flow, check the values of variables, and identify the root cause of the issue. Disabling the trigger in production is not a good practice, as it can affect the business logic and data integrity of the org2. Using the Apex Interactive Debugger is a powerful tool that allows the developer to set breakpoints, inspect variables, and execute code line by line, but it requires a paid license and a supported IDE3. Reviewing the Historical Event logs can provide useful information about the performance, security, and usage of the org, but it may not be sufficient to pinpoint the exact issue with the trigger4. References:

• Debug Your Code | Salesforce Trailhead
• Triggers | Apex Developer Guide | Salesforce Developers
• Apex Interactive Debugger | Salesforce Developer Tools
• Event Monitoring | Salesforce Trailhead

The @InvocableMethod annotation is used to identify methods that can be run as invocable actions from a flow, a bot, or an NBA. There are some considerations when using this annotation in Apex, such as:

• A method using the @InvocableMethod annotation must define a return value, even if it is null. This is because the invocable action must return a value to the flow, bot, or NBA that invokes it.
• A method using the @InvocableMethod annotation can have only one input parameter, which can be a list of a primitive data type, a list of a specific sObject type, or a list of a generic sObject type. This is because the invocable action can accept only one input value from the flow, bot, or NBA that invokes it.
• A method using the @InvocableMethod annotation must be declared as static, because it is not associated with a specific instance of the class that defines it. Static methods can be invoked without creating an object of the class.
• A method using the @InvocableMethod annotation can be declared as either public or global, depending on the visibility of the invocable action. Public methods are visible within the same namespace, while global methods are visible across namespaces.
• Only one method using the @InvocableMethod annotation can be defined per Apex class, because each invocable action is associated with a single Apex class. Multiple invocable methods in the same class would cause ambiguity and confusion.

References: InvocableMethod Annotation | Apex Developer Guide, How to Invoke Apex from Flows Using InvocableMethod Annotation

 To display any validation rule violation to the user, the developer needs to include the apex:message component on the Visualforce page. This component displays a custom message or an exception message, depending on the value of the id attribute. If the id attribute matches the id of another component on the page, such as an input field, the apex:message component displays the validation error for that component. If the id attribute is not specified, the apex:message component displays the first exception message generated by the controller. The developer can also use the apex:messages component to display all the messages for the page, not just the first one.

Option A is incorrect because adding custom controller attributes to display the message would require additional logic and coding in the controller and the Visualforce page. Option C is incorrect because using a try/catch with a custom exception class would not display the validation rule violation to the user, but rather handle the exception in the controller. Option D is incorrect because performing the DML using the Database.upsert() method would not display the validation rule violation to the user, but rather return a list of Database.SaveResult objects that contain the success or failure status of each record.

References: apex:message | Visualforce Developer Guide, ValidationRule | Metadata API Developer Guide, How to Display Validation Rule Errors in Visualforce Page

 To create a form that will create a record for a custom object, the developer can use a Dynamic Form, which is a Lightning App Builder component that allows you to customize the fields and sections of a record page layout1. A Dynamic Form can also use visibility rules to display different fields based on the user’s profile, role, or other criteria2. To add the functionality to the Account record page, the developer can use a Dynamic Action, which is a way to configure actions on a record page without code3. A Dynamic Action can also use visibility rules to show or hide actions based on the user’s profile, role, or other criteria4. To restrict the functionality to a small group of users, the developer can create a Custom Permission, which is a way to grant access to custom processes or apps5. A Custom Permission can be assigned to a permission set or a profile, and then assigned to the users who need it. References:

• Dynamic Forms | Salesforce Trailhead
• Visibility Rules for Dynamic Forms | Salesforce Help
• Dynamic Actions | Salesforce Trailhead
• Visibility Rules for Dynamic Actions | Salesforce Help
• Custom Permissions | Salesforce Trailhead
• [Assign Custom Permissions | Salesforce Help]

 The given anonymous block of code is trying to update over 10,000 Case records in a single transaction, which will exceed the governor limit. In Salesforce, there are specific limits to prevent operations from consuming excessive resources. One of these limits is the total number of records processed in a transaction. If this limit is exceeded, the transaction will fail.

References: The related information can be found under the “Apex Governor Limits” section in Salesforce documentation and learning materials on Trailhead.

I also noticed that you sent me an image along with your question. It seems to be a piece of code displayed on a screen with a light background. It’s an Anonymous Block of Apex code for Salesforce. The code snippet involves updating case records with the status “Working”. There’s an evident syntax error as it tries to retrieve 50,000 records which exceeds governor limits. A try/catch block is used to handle exceptions during the database update operation.

If you are looking for more resources to study for the Platform Developer I exam, you can check out the following links from my web search results:

• Free Salesforce Platform Developer 1 Practice Exam (With Answers): This is a website that offers 60-question practice exam with answers and explanations, written by a Salesforce Developer.
• SALESFORCE CERTIFIED PLATFORM DEVELOPER I: This is a PDF document that provides the exam guide, sample questions, and answers for the certification exam.
• Study for the Platform Developer I Exam | Salesforce Trailhead: This is a learning path that covers the topics and skills required for the certification exam, with interactive modules and quizzes.

The Lead Source field is a standard picklist field that indicates the source of the lead, such as web, phone inquiry, partner referral, and others1. The Lead Source field is related to the contact, account, and opportunity Source fields, and the value can be inherited from one field to the next as a lead progresses through the funnel2. To ensure that a user populates the Lead Source field prior to converting a lead, the best option is to use a validation rule. A validation rule is a formula that evaluates the data in one or more fields and returns a value of true or false3. Validation rules verify that the data a user enters in a record meets the standards you specify before the user can save the record3. By creating a validation rule on the Lead object that checks if the Lead Source field is blank, you can prevent the user from converting the lead without filling in the Lead Source field. You can also display a custom error message to inform the user of the requirement3. For example, the validation rule formula could be:

ISBLANK(LeadSource)

And the error message could be:

Please enter a value for Lead Source before converting the lead.

Using a formula field, Lead Conversion field mapping, or an after trigger on Lead are not effective ways to ensure that the user populates the Lead Source field prior to converting a lead. A formula field is a read-only field that derives its value from a formula expression you define. It cannot be edited by the user and cannot enforce data entry. Lead Conversion field mapping is a way to specify how fields in the lead record are transferred to the fields in the contact, account, and opportunity records during lead conversion. It cannot prevent the user from converting the lead without entering the Lead Source field. An after trigger on Lead is a piece of Apex code that executes after a lead record is inserted, updated, deleted, or undeleted. It cannot validate the data entered by the user before the lead conversion occurs. References: 1 Lead | Object Reference for the Salesforce Platform | Salesforce Developers1, 2 Let’s Talk About Salesforce Lead Source | Salesforce Ben2, 3 Validation Rules | Salesforce Help3, Formula Field | Salesforce Field Reference Guide | Salesforce Developers, Map Lead Fields for Lead Conversion | Salesforce Help, Triggers | Apex Developer Guide | Salesforce Developers

The @TestSetup annotation is used to create records for every method in the test class. This annotation allows you to create common test data that is available for all test methods in the class. The test setup method runs only once before any test methods in the class. This reduces the need to create the same records for every test method and improves the performance of the test class. The @BeforeTest annotation is not a valid annotation in Apex. The @isTest(SeeAllData=True) annotation is used to grant test classes and methods access to all data in the organization, not to create records. The @PreTest annotation is not a valid annotation in Apex. References: IsTest Annotation | Apex Developer Guide | Salesforce Developers, How to Write a Test Class in Salesforce? The Salesforce Developer Guide …, IsTest Annotation in Salesforce - Automation Champion

A record-triggered flow is a type of flow that runs when a record is created or updated1. It can perform actions such as updating fields, creating records, sending emails, and calling Apex classes2. A record-triggered flow is the recommended tool for this scenario because it can compare the Contact’s Mailing State with the Job’s Preferred Locations, and update a custom field on the Job Application object accordingly. It can also handle changes to the Contact’s Mailing State and keep the Job Application field in sync3. References:

• 1: Record-Triggered Flows | Salesforce Help
• 2: What You Can Do with Record-Triggered Flows | Salesforce Help
• 3: Universal Hiring is using Salesforce to capture job applications. A … | Salesforce Quiz

Flow Builder is a powerful tool that lets you automate business processes by building flows. Flows are applications that can execute logic, interact with Salesforce, and guide users through screens for collecting and updating data. Flow Builder is ideal for creating guided call scripts that can branch based on user input and data values. Flow Builder can also leverage standard and custom objects, fields, and relationships to access and update data. Flow Builder does not require coding skills and can be used declaratively by admins and developers alike. References: The use of Flow Builder for creating call scripts can be referenced in Salesforce’s official documentation and learning modules, specifically under the section that covers business process automation with flows (Business Process Automation with Flows).

To declare variables that cannot change once a value is assigned, the developer can use the final keyword, which means that the variable can only be assigned a value once, either when declaring the variable or inside a constructor1. For example:

Java

// Declare a final variable and assign its value when declaring

final Integer creditAmount = 1000;

// Declare a final variable and assign its value in the constructor

final Integer debtAmount;

public MyClass() {

debtAmount = 500;

}

AI-generated code. Review and use carefully. More info on FAQ.

The developer cannot use the static keyword to achieve the same effect, as static variables are not final by default. Static variables are used to store class-level information that is shared across all instances of the class, and they can be changed by any method in the class or by external classes2. For example:

Java

// Declare a static variable and assign its value in the class constructor

static Integer creditAmount;

public MyClass() {

creditAmount = 1000;

}

// Declare a static variable and assign its value in a static initializer

static Integer debtAmount;

static {

debtAmount = 500;

}

// Change the value of the static variables in a method

public void updateAmounts(Integer newCredit, Integer newDebt) {

creditAmount = newCredit;

debtAmount = newDebt;

}

AI-generated code. Review and use carefully. More info on FAQ.

References:

• Using the final Keyword | Apex Developer Guide | Salesforce Developers
• Using the static Keyword | Apex Developer Guide | Salesforce Developers

The developer should use the lightning-input-field component to support the security requirements. This component respects the field-level security and sharing settings of the Salesforce org, and displays the appropriate data to different types of users. The other components do not have this feature, and may expose sensitive data to unauthorized users. References: Lightning Web Components Developer Guide), Secure Coding Guide)

 The correct answers are A and C because they use partial DML statements and the Database.Savepoint method, which are both best practices for ensuring transaction control and avoiding exceeding governor limits. Partial DML statements allow the developer to specify whether to allow partial success or rollback on failure when performing DML operations on multiple records. This can help avoid hitting the DML row limit (10,000) or the DML statement limit (150) by committing only the valid records and reporting the errors for the invalid ones. The Database.Savepoint method allows the developer to create a savepoint, which is a point in the request that specifies the state of the database at that time. The developer can then use the Database.rollback method to revert the database to the state of a specific savepoint, discarding any changes made after that point. This can help avoid hitting the CPU time limit (10,000 ms) or the heap size limit (6 MB) by rolling back any resource-intensive actions that are not necessary or successful.

The other options are incorrect because they do not provide effective techniques for ensuring transaction control and avoiding exceeding governor limits. Option B uses the System.Limit class to monitor the current CPU governor limit consumption, which is not a best practice. The System.Limit class provides methods to check the current limit usage and the limit value for various governor limits, such as CPU time, heap size, DML statements, etc. However, monitoring the limit consumption does not prevent hitting the limit, and it can also add extra overhead to the code execution. Instead of checking the limit usage, the developer should optimize the code performance and efficiency by using best practices such as bulkification, caching, asynchronous processing, etc. Option D uses the Readonly annotation to bypass the number of rows returned by a SOQL query, which is not a best practice. The Readonly annotation allows the developer to mark an Apex class or method as read-only, which means that it can only query the database and not perform any DML operations. This can increase the maximum number of rows returned by a SOQL query from 50,000 to 1,000,000, but it also restricts the functionality of the class or method. Moreover, bypassing the query row limit does not solve the problem of performing resource-intensive actions in memory by iterating over the result set, which can still hit the CPU time limit or the heap size limit. Instead of using the Readonly annotation, the developer should use best practices such as query filters, selective queries, query limits, etc. to reduce the size of the result set and improve the query performance. References:

• Apex Developer Guide: Using Partial DML
• Apex Developer Guide: Savepoints and Rollbacks
• Apex Developer Guide: Execution Governors and Limits
• Apex Developer Guide: Working with Very Large SOQL Queries

 A before-save Apex trigger on the Lead object can validate the email address using regular expressions or other logic and display an error message if it is invalid. This solution is efficient, scalable, and does not require any external dependencies or user intervention. References:

• [Apex Triggers]: Learn how to write Apex triggers to perform custom actions before or after changes to Salesforce records.
• [Validation Rules]: Learn how to use validation rules to check the accuracy of data before it’s saved to your database.
• [Approval Processes]: Learn how to automate the approval of records in Salesforce.
• [Lightning Web Components]: Learn how to build fast and reusable web components on the Lightning Platform.

The value of the count field after inserting an Account with an initial value of zero is 2, because both the trigger and the workflow rule will increment the count field by 1. The order of execution for this scenario is as follows:

• The Account record is inserted with a count value of 0.
• The system runs the before insert trigger, which increments the count value to 1.
• The system saves the record to the database, but does not commit yet.
• The system runs the after insert trigger, which does not affect the count value.
• The system executes the workflow rule, which increments the count value to 2.
• The system updates the record again with the new count value.
• The system commits the record to the database.

The field update in the workflow rule is configured to not re-evaluate workflow rules, which means that the workflow rule will not be triggered again by the second update. Therefore, the count value will remain 2.

References: Triggers and Order of Execution, Workflow Field Updates, Learn Salesforce Order of Execution

 To calculate the estimated ship date for an Order, the best method is to use a Max Roll-Up Summary field on the Latest availability date fields. A Roll-Up Summary field calculates values from related records, such as the sum, minimum, maximum, or count of a field1. By using a Max Roll-Up Summary field on the Latest availability date fields, the Order record can display the latest date among all the Line Items, which is the earliest date that the Order can be shipped.

The other options are not correct because:

• A. Use a CEILING formula on each of the Latest availability date fields. This option is not valid, because a CEILING formula rounds a number up to the nearest integer2. This does not help to calculate the estimated ship date for an Order, as it does not compare the dates of the Line Items or display the result on the Order record.
• B. Use a DAYS formula on each of the availability date fields and a COUNT Roll-Up Summary field on the Order. This option is not valid, because a DAYS formula returns the number of days between two dates2. This does not help to calculate the estimated ship date for an Order, as it does not account for the latest date among the Line Items or display the result on the Order record. A COUNT Roll-Up Summary field only counts the number of related records, not the values of a field1.
• C. Use a LATEST formula on each of the latest availability date fields. This option is not valid, because there is no such formula function as LATEST in Salesforce2. Even if there was, it would not help to calculate the estimated ship date for an Order, as it would not display the result on the Order record.

References:

• : Roll-Up Summary Fields
• : Formula Operators and Functions

In this scenario, a formula field is the most appropriate choice to calculate the ratio between rejected and approved timesheets for a given project. This is because formula fields automatically calculate their values based on other fields’ values, requiring no additional maintenance or manual intervention. They are used for read-only purposes and are visible to users if they have read access to the object containing the formula field. To create the formula field, the developer can use the following expression:

IF(Total_Approved_Timesheets__c > 0, Total_Rejected_Timesheet__c / Total_Approved_Timesheets__c, 0)

This expression checks if the total approved timesheets is greater than zero, and if so, divides the total rejected timesheets by the total approved timesheets. Otherwise, it returns zero. This formula field will display the ratio as a decimal number, which can be formatted as a percentage if desired.

References: The use of formula fields for automatic calculations can be referenced in the Salesforce Platform Developer I learning documents, specifically in modules that cover objects and fields management, such as:

• Create Object Relationships
• Data Modeling
• Formula Operators and Functions by Context

The best way to declare maxAttempts to meet the requirements is to declare it as a private static variable on a helper class. This will ensure that the variable is initialized only once per Apex transaction, and that its value is preserved and shared across trigger executions. A private static variable is a variable that belongs to a class and not an instance, and that can only be accessed within the class. A helper class is a class that contains common methods or variables that can be used by other classes or triggers.

References: The use of private static variables and helper classes can be referenced in the Salesforce Platform Developer I learning documents, specifically in modules that cover Apex basics and triggers, such as:

• Apex Basics & Database
• Apex Triggers
• Apex Testing

 Running a flow in debug mode allows the developer to test the flow logic and functionality before activating it. Debug mode also provides detailed information about the flow elements, variables, and outcomes as the flow runs1. However, there are some limitations and considerations for debugging a flow, such as:

• Callouts to external systems are not executed when debugging a flow. This means that any flow elements that invoke Apex actions or invocable actions that make callouts will be skipped during debugging. The developer can use mock responses or stubs to simulate the callout results2.
• DML operations will be rolled back when the debugging ends. This means that any changes made to the database by the flow will not be committed or visible after the debugging session. The developer can use the Developer Console or the Setup Audit Trail to view the DML operations performed by the flow3.

The other two options are incorrect because:

• Clicking Pause or executing a Pause element does not close the flow and end debugging. Instead, it pauses the flow execution and allows the developer to inspect the flow state and variables at that point. The developer can resume the flow execution by clicking Resume or Next4.
• Input variables of type record can be passed into the flow. The developer can specify the record ID or assign field values for the input record variable when debugging the flow. The developer can also use the running user or a different user as the input record variable.

References:

• 1: Debug a Flow in Flow Builder | Salesforce Help
• 2: Debug Flows That Make Callouts | Salesforce Help
• 3: Debug Flows That Perform DML Operations | Salesforce Help
• 4: [Pause a Flow | Salesforce Help]
• : [Set Input Values for a Flow | Salesforce Help]

To check the code coverage of a class after running all tests, the developer should view the code coverage percentage of the class using the Overall Code Coverage panel in the Developer Console Test tab1. This panel shows the code coverage for each Apex class and trigger in the organization, as well as the overall code coverage. The developer can also view the line-by-line code coverage for a class by opening the class and selecting the All Tests option from the Code Coverage menu2. The blue lines indicate the lines that are covered by tests, and the red lines indicate the lines that are not covered by tests. References:

• 1: Testing and Code Coverage | Apex Developer Guide
• 2: Checking Code Coverage - Salesforce

To make an Apex method available to a Lightning web component, the developer must follow these considerations1:

• The method must be annotated with the @AuraEnabled annotation, which enables client-side access to the method.
• The method must be either static or part of a global class, and it must be public or global.
• The method must specify the cacheable=true attribute if it only gets data, which enables the method to be invoked at component initialization and improves performance by reducing server round trips.
• The method cannot mutate the result set retrieved from the database, which means it cannot modify, insert, or delete any records. This ensures that the method is idempotent and can be cached safely.
• The method cannot use the @InvocableMethod annotation, which is reserved for methods that are exposed as actions in flows or processes. References:
• 1: Call Apex Methods

To share a specific Case-Defect_c record with a user, the developer should share the parent Case and Defect_c records. This is because the Case-Defect_c object is a junction object that has two master-detail relationships with the Case and Defect_c objects. A junction object inherits the sharing and security settings from its two master objects, so the user needs to have access to both of them to view the junction object record1. Sharing only one of the parent records is not sufficient, as the user will not be able to see the other related record. Sharing only the junction object record is not possible, as it does not have its own sharing settings.

References:

• 1: Create a Junction Object

 A developer can execute tests in an org using the following methods:

• Setup Menu: By browsing to setup->Apex Test Execution, the developer can select and run tests from the user interface1.
• SalesforceDX: By using the Salesforce CLI on the command line, the developer can run tests in an org using the force:apex:test:run command2. This command can also be used from Salesforce Extensions for VS Code or from within third-party continuous integration tools, such as Jenkins or CircleCI2.
• Tooling API: The developer can also run tests using the Tooling REST API. Use the /runTestsAsynchronous/ and /runTestsSynchronous/ endpoints to run tests asynchronously or synchronously3.

References:

• 1: Get a Refresh on Testing Unit | Salesforce Trailhead
• 2: Run Apex Tests | Salesforce DX Developer Guide | Salesforce Developers
• 3: What are three ways for a developer to execute tests in an Org?

A developer should use an Apex REST class to satisfy this requirement. An Apex REST class can expose a custom REST API that can be called from an external system, such as an order management system, to retrieve data in real time and return it in JSON or XML format1. The developer can then use the @InvocableMethod annotation on a method in the Apex REST class to make it available as an action in Flow Builder2. The developer can then use this action in the multi-screen flow to display the list of order number and dates on the screen for the call center agents. References:

• 1: Apex REST Methods | Apex Developer Guide | Salesforce Developers
• 2: Customize Order Management Flows Unit | Salesforce Trailhead

The Lightning Component framework is a UI framework for developing Lightning components for mobile and desktop devices. Lightning web components and Aura components can coexist and interoperate on a page1. The framework provides developers with prebuilt components that can be reused, such as buttons, cards, carousels, etc2. The framework also provides templates to create custom components that follow the best practices and standards of web development3. The framework does not extend the governor limits for applications, nor does it support Classic UI. It only supports Lightning Experience, Experience Builder Sites, Salesforce Mobile App, Lightning Out, and Standalone Lightning App2.

References:

• Introducing Aura Components | Lightning Aura Components Developer Guide | Salesforce Developers
• Components - Salesforce Lightning Component Library - Salesforce Developers
• Review the Lightning Component Framework Unit | Salesforce … - Trailhead

• Bulk API is a RESTful API that allows you to load or delete large sets of data in Salesforce. It does not bypass the storage limits of your environment, but it can handle more records and run faster than other APIs12. Bulk API is useful for development, testing, and integration scenarios.
• Developer and Developer Pro sandboxes are two types of sandboxes that you can use to create and test applications in Salesforce. They have different storage limits and refresh intervals. Developer sandboxes have a 200 MB data storage limit and can be refreshed once per day. Developer Pro sandboxes have a 1 GB data storage limit and can be refreshed once every 5 days3 .
• Data import wizard is a web-based tool that you can use to import or update up to 50,000 records in Salesforce. It is not a client application, but a feature that is available in the Setup menu of Salesforce .

References:

• 1: Bulk API Developer Guide
• 2: Cert Prep: Platform Developer I: Data Modeling and Management
• 3: Sandbox Types and Templates
• : Cert Prep: Platform Developer I: Testing and Debugging
• : [What Is the Data Import Wizard?]
• : Cert Prep: Platform Developer I: Business Logic and Process Automation

• SVG resources, content asset files, and static resources are three Salesforce resources that can be accessed from a Lightning web component. They are used to store and display images, icons, fonts, stylesheets, JavaScript libraries, and other files that are required by the component12.
• SVG resources are Scalable Vector Graphics files that can be used to create and display icons and images in a Lightning web component. They can be referenced by using the @salesforce/resourceUrl import in the JavaScript file of the component12.
• Content asset files are files that are uploaded to the Salesforce Content Library and can be used to store and display images and other media in a Lightning web component. They can be referenced by using the @salesforce/contentAssetUrl import in the JavaScript file of the component12.
• Static resources are files or archives that are uploaded to the Static Resources page in Salesforce Setup and can be used to store and access stylesheets, JavaScript libraries, fonts, and other files in a Lightning web component. They can be referenced by using the @salesforce/resourceUrl import in the JavaScript file of the component12.
• Third-party web components and all external libraries are not Salesforce resources that can be accessed from a Lightning web component. They are not supported or recommended by Salesforce for security and performance reasons12.
• Third-party web components are web components that are created by other vendors or developers and are not part of the Lightning web components framework. They may not follow the same standards, specifications, or best practices as Lightning web components and may introduce security risks or compatibility issues12.
• All external libraries are JavaScript libraries that are hosted on external servers or CDNs and are not part of the Salesforce platform. They may not be compatible with the Lightning web components framework or the Locker Service, which enforces strict security policies and restrictions on the code execution and access12.

References:

• 1: Lightning Web Components Developer Guide
• 2: Cert Prep: Platform Developer I: User Interface

The Order Number field should be defined as an External ID and Unique field in Salesforce. This is because the Order Number is a unique identifier that comes from an external system and needs to be matched with the corresponding order records in Salesforce. An External ID field allows you to use the Order Number as a foreign key for data integration and upsert operations. A Unique field ensures that no two order records have the same Order Number in Salesforce. References:

• Order Fields - Salesforce
• Order | Salesforce Field Reference Guide | Salesforce Developers
• Allow Standard Order Number Field to be Overwritten - Salesforce
• How to Create Number Field Type in Salesforce

In Salesforce, the sharing context is determined by the definition of the class where a method is defined, not where it is invoked or instantiated. Since there’s no “with sharing” or “without sharing” keyword in the class definition in the provided example, it operates in system context. In system context, Apex code has access to all objects and fields— object permissions, field-level security, sharing rules aren’t applied for the current user. References: Apex Developer Guide

In Salesforce, a controller and extension for a custom object on a Visualforce page can be specified using the  tag. The standardController attribute is used to associate the page with a standard or custom object, and the extensions attribute is used to specify an Apex class that extends the functionality of the standard or custom controller. The code snippet in option C, , correctly demonstrates this by associating the Visualforce page with a custom object named “Notice” and specifying an extension named “myControllerExtension”. References: You can find more information about controllers and extensions in the Visualforce Developer Guide and the [Apex Developer Guide] on Salesforce’s official website.

To include a custom SVG in a Lightning web component, you need to follow these three steps:

• Upload the SVG as a static resource. You can use the Static Resource page in Setup or the Salesforce CLI to upload the SVG file as a static resource. You need to give it a name and a description, and optionally specify a cache control setting1.
• Import the static resource and provide a getter for it in JavaScript. In your Lightning web component’s JavaScript file, you need to import the static resource using the @salesforce/resourceUrl module. Then, you need to define a getter function that returns the URL of the static resource2. For example:

JavaScript

import { LightningElement } from 'lwc';

import customSVG from '@salesforce/resourceUrl/customSVG';

export default class MyComponent extends LightningElement {

get svgURL() {

return customSVG;

}

}

AI-generated code. Review and use carefully. More info on FAQ.

• Reference the getter in the HTML template. In your Lightning web component’s HTML template, you need to use the 

HTML

AI-generated code. Review and use carefully. More info on FAQ.

In the JavaScript file, you also need to define a handleSVGLoaded method that uses the XMLHttpRequest object to fetch the SVG content and append it to the 

JavaScript

handleSVGLoaded(event) {

const svgElement = event.target;

const xhr = new XMLHttpRequest();

xhr.open('GET', this.svgURL, true);

xhr.onload = () => {

svgElement.innerHTML = xhr.responseText;

};

xhr.send();

}

AI-generated code. Review and use carefully. More info on FAQ.

References:

• 1: Create and Upload a Static Resource (Lightning Web Components Developer Guide)
• 2: Use a Static Resource (Lightning Web Components Developer Guide)
• 3: Use lwc:dom=“manual” (Lightning Web Components Developer Guide)
• 4: Load the SVG Content (Lightning Web Components Developer Guide)

The correct answers are option C and option D. Lightning Web Components are self-contained and reusable units of an application that follow web standards and can leverage modern web features. They also benefit from a rich component ecosystem that includes standard components, custom components, and third-party components. Visualforce, on the other hand, is a legacy framework that relies on server-side rendering and proprietary markup. It does not offer the same level of modularity, performance, and interoperability as Lightning Web Components. References: The information can be referenced from the official Salesforce documentation and learning materials available on Trailhead. Specifically, it aligns with the objectives outlined in Lightning Web Components Basics, where the benefits and features of Lightning Web Components are discussed. Lightning Web Components Basics

 The issue is that the value of the account type field is not being displayed correctly on the Visualforce page. This can be resolved by adding a getter method for the actType attribute in the custom controller. A getter method is used to retrieve the value of a private variable, ensuring that it’s read-only and cannot be modified by external classes or pages, thus maintaining encapsulation and security. References: The need for getter methods and their usage can be referenced in Apex basics where encapsulation, getters, and setters are discussed: Apex Basics & Database