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MCPA-Level-1 MuleSoft Certified Platform Architect - Level 1 Questions and Answers

Questions 4

Which of the following best fits the definition of API-led connectivity?

Options:

A.

API-led connectivity is not just an architecture or technology but also a way to organize people and processes for efficient IT delivery in the organization

B.

API-led connectivity is a 3-layered architecture covering Experience, Process and System layers

C.

API-led connectivity is a technology which enabled us to implement Experience, Process and System layer based APIs

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Questions 5

Mule applications that implement a number of REST APIs are deployed to their own subnet that is inaccessible from outside the organization.

External business-partners need to access these APIs, which are only allowed to be invoked from a separate subnet dedicated to partners - called Partner-subnet. This subnet is accessible from the public internet, which allows these external partners to reach it.

Anypoint Platform and Mule runtimes are already deployed in Partner-subnet. These Mule runtimes can already access the APIs.

What is the most resource-efficient solution to comply with these requirements, while having the least impact on other applications that are currently using the APIs?

Options:

A.

Implement (or generate) an API proxy Mule application for each of the APIs, then deploy the API proxies to the Mule runtimes

B.

Redeploy the API implementations to the same servers running the Mule runtimes

C.

Add an additional endpoint to each API for partner-enablement consumption

D.

Duplicate the APIs as Mule applications, then deploy them to the Mule runtimes

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Questions 6

What is true about the technology architecture of Anypoint VPCs?

Options:

A.

The private IP address range of an Anypoint VPC is automatically chosen by CloudHub

B.

Traffic between Mule applications deployed to an Anypoint VPC and on-premises systems can stay within a private network

C.

Each CloudHub environment requires a separate Anypoint VPC

D.

VPC peering can be used to link the underlying AWS VPC to an on-premises (non AWS) private network

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Questions 7

The responses to some HTTP requests can be cached depending on the HTTP verb used in the request. According to the HTTP specification, for what HTTP verbs is this safe to do?

Options:

A.

PUT, POST, DELETE

B.

GET, HEAD, POST

C.

GET, PUT, OPTIONS

D.

GET, OPTIONS, HEAD

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Questions 8

An organization has created an API-led architecture that uses various API layers to integrate mobile clients with a backend system. The backend system consists of a number of specialized components and can be accessed via a REST API. The process and experience APIs share the same bounded-context model that is different from the backend data model. What additional canonical models, bounded-context models, or anti-corruption layers are best added to this architecture to help process data consumed from the backend system?

Options:

A.

Create a bounded-context model for every layer and overlap them when the boundary contexts overlap, letting API developers know about the differences between upstream and downstream data models

B.

Create a canonical model that combines the backend and API-led models to simplify and unify data models, and minimize data transformations.

C.

Create a bounded-context model for the system layer to closely match the backend data model, and add an anti-corruption layer to let the different bounded contexts cooperate across the system and process layers

D.

Create an anti-corruption layer for every API to perform transformation for every data model to match each other, and let data simply travel between APIs to avoid the complexity and overhead of building canonical models

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Questions 9

Version 3.0.1 of a REST API implementation represents time values in PST time using ISO 8601 hh:mm:ss format. The API implementation needs to be changed to instead represent time values in CEST time using ISO 8601 hh:mm:ss format. When following the semver.org semantic versioning specification, what version should be assigned to the updated API implementation?

Options:

A.

3.0.2

B.

4.0.0

C.

3.1.0

D.

3.0.1

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Questions 10

What is a best practice when building System APIs?

Options:

A.

Document the API using an easily consumable asset like a RAML definition

B.

Model all API resources and methods to closely mimic the operations of the backend system

C.

Build an Enterprise Data Model (Canonical Data Model) for each backend system and apply it to System APIs

D.

Expose to API clients all technical details of the API implementation's interaction wifch the backend system

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Questions 11

An API implementation is deployed on a single worker on CloudHub and invoked by external API clients (outside of CloudHub). How can an alert be set up that is guaranteed to trigger AS SOON AS that API implementation stops responding to API invocations?

Options:

A.

Implement a heartbeat/health check within the API and invoke it from outside the Anypoint Platform and alert when the heartbeat does not respond

B.

Configure a "worker not responding" alert in Anypoint Runtime Manager

C.

Handle API invocation exceptions within the calling API client and raise an alert from that API client when the API Is unavailable

D.

Create an alert for when the API receives no requests within a specified time period

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Questions 12

Refer to the exhibit.

An organization uses one specific CloudHub (AWS) region for all CloudHub deployments.

How are CloudHub workers assigned to availability zones (AZs) when the organization's Mule applications are deployed to CloudHub in that region?

Options:

A.

Workers belonging to a given environment are assigned to the same AZ within that region

B.

AZs are selected as part of the Mule application's deployment configuration

C.

Workers are randomly distributed across available AZs within that region

D.

An AZ is randomly selected for a Mule application, and all the Mule application's CloudHub workers are assigned to that one AZ

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Questions 13

What is a typical result of using a fine-grained rather than a coarse-grained API deployment model to implement a given business process?

Options:

A.

A decrease in the number of connections within the application network supporting the business process

B.

A higher number of discoverable API-related assets in the application network

C.

A better response time for the end user as a result of the APIs being smaller in scope and complexity

D.

An overall tower usage of resources because each fine-grained API consumes less resources

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Questions 14

What CANNOT be effectively enforced using an API policy in Anypoint Platform?

Options:

A.

Guarding against Denial of Service attacks

B.

Maintaining tamper-proof credentials between APIs

C.

Logging HTTP requests and responses

D.

Backend system overloading

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Questions 15

When designing an upstream API and its implementation, the development team has been advised to NOT set timeouts when invoking a downstream API, because that downstream API has no SLA that can be relied upon. This is the only downstream API dependency of that upstream API.

Assume the downstream API runs uninterrupted without crashing. What is the impact of this advice?

Options:

A.

An SLA for the upstream API CANNOT be provided

B.

The invocation of the downstream API will run to completion without timing out

C.

A default timeout of 500 ms will automatically be applied by the Mule runtime in which the upstream API implementation executes

D.

A toad-dependent timeout of less than 1000 ms will be applied by the Mule runtime in which the downstream API implementation executes

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Questions 16

An API has been updated in Anypoint exchange by its API producer from version 3.1.1 to 3.2.0 following accepted semantic versioning practices and the changes have been communicated via the APIs public portal. The API endpoint does NOT change in the new version. How should the developer of an API client respond to this change?

Options:

A.

The API producer should be requested to run the old version in parallel with the new one

B.

The API producer should be contacted to understand the change to existing functionality

C.

The API client code only needs to be changed if it needs to take advantage of the new features

D.

The API clients need to update the code on their side and need to do full regression

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Questions 17

An organization wants to make sure only known partners can invoke the organization's APIs. To achieve this security goal, the organization wants to enforce a Client ID Enforcement policyin API Manager so that only registered partner applications can invoke the organization's APIs. In what type of API implementation does MuleSoft recommend adding an API proxy to enforce the Client ID Enforcement policy, rather than embedding the policy directly in the application's JVM?

Options:

A.

A Mule 3 application using APIkit

B.

A Mule 3 or Mule 4 application modified with custom Java code

C.

A Mule 4 application with an API specification

D.

A Non-Mule application

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Questions 18

Which of the following sequence is correct?

Options:

A.

API Client implementes logic to call an API >> API Consumer requests access to API >> API Implementation routes the request to >> API

B.

API Consumer requests access to API >> API Client implementes logic to call an API >> API routes the request to >> API Implementation

C.

API Consumer implementes logic to call an API >> API Client requests access to API >> API Implementation routes the request to >> API

D.

API Client implementes logic to call an API >> API Consumer requests access to API >> API routes the request to >> API Implementation

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Questions 19

In which layer of API-led connectivity, does the business logic orchestration reside?

Options:

A.

System Layer

B.

Experience Layer

C.

Process Layer

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Questions 20

A retail company is using an Order API to accept new orders. The Order API uses a JMS queue to submit orders to a backend order management service. The normal load for orders is being handled using two (2) CloudHub workers, each configured with 0.2 vCore. The CPU load of each CloudHub worker normally runs well below 70%. However, several times during the year the Order API gets four times (4x) the average number of orders. This causes the CloudHub worker CPU load to exceed 90% and the order submission time to exceed 30 seconds. The cause, however, is NOT the backend order management service, which still responds fast enough to meet the response SLA for the Order API. What is the MOST resource-efficient way to configure the Mule application's CloudHub deployment to help the company cope with this performance challenge?

Options:

A.

Permanently increase the size of each of the two (2) CloudHub workers by at least four times (4x) to one (1) vCore

B.

Use a vertical CloudHub autoscaling policy that triggers on CPU utilization greater than 70%

C.

Permanently increase the number of CloudHub workers by four times (4x) to eight (8) CloudHub workers

D.

Use a horizontal CloudHub autoscaling policy that triggers on CPU utilization greater than 70%

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Questions 21

A company has created a successful enterprise data model (EDM). The company is committed to building an application network by adopting modern APIs as a core enabler of the company's IT operating model. At what API tiers (experience, process, system) should the company require reusing the EDM when designing modern API data models?

Options:

A.

At the experience and process tiers

B.

At the experience and system tiers

C.

At the process and system tiers

D.

At the experience, process, and system tiers

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Questions 22

Refer to the exhibit.

A developer is building a client application to invoke an API deployed to the STAGING environment that is governed by a client ID enforcement policy.

What is required to successfully invoke the API?

Options:

A.

The client ID and secret for the Anypoint Platform account owning the API in the STAGING environment

B.

The client ID and secret for the Anypoint Platform account's STAGING environment

C.

The client ID and secret obtained from Anypoint Exchange for the API instance in the STAGING environment

D.

A valid OAuth token obtained from Anypoint Platform and its associated client ID and secret

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Questions 23

Select the correct Owner-Layer combinations from below options

Options:

A.

1. App Developers owns and focuses on Experience Layer APIs

2. Central IT owns and focuses on Process Layer APIs

3. LOB IT owns and focuses on System Layer APIs

B.

1. Central IT owns and focuses on Experience Layer APIs

2. LOB IT owns and focuses on Process Layer APIs

3. App Developers owns and focuses on System Layer APIs

C.

1. App Developers owns and focuses on Experience Layer APIs

2. LOB IT owns and focuses on Process Layer APIs

3. Central IT owns and focuses on System Layer APIs

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Questions 24

An organization uses various cloud-based SaaS systems and multiple on-premises systems. The on-premises systems are an important part of the organization's application network and can only be accessed from within the organization's intranet.

What is the best way to configure and use Anypoint Platform to support integrations with both the cloud-based SaaS systems and on-premises systems?

A) Use CloudHub-deployed Mule runtimes in an Anypoint VPC managed by Anypoint Platform Private Cloud Edition control plane

B)Use CloudHub-deployed Mule runtimes in the shared worker cloud managed by the MuleSoft-hosted Anypoint Platform control plane

C)Use an on-premises installation of Mule runtimes that are completely isolated with NO external network access, managed by the Anypoint Platform Private Cloud Edition control plane

D)Use a combination of Cloud Hub-deployed and manually provisioned on-premises Mule runtimes managed by the MuleSoft-hosted Anypoint Platform control plane

Options:

A.

Option A

B.

Option B

C.

Option C

D.

Option D

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Questions 25

A company uses a hybrid Anypoint Platform deployment model that combines the EU control plane with customer-hosted Mule runtimes. After successfully testing a Mule API implementation in the Staging environment, the Mule API implementation is set with environment-specific properties and must be promoted to the Production environment. What is a way that MuleSoft recommends to configure the Mule API implementation and automate its promotion to the Production environment?

Options:

A.

Bundle properties files for each environment into the Mule API implementation's deployable archive, then promote the Mule API implementation to the Production environment using Anypoint CLI or the Anypoint Platform REST APIsB.

B.

Modify the Mule API implementation's properties in the API Manager Properties tab, then promote the Mule API implementation to the Production environment using API Manager

C.

Modify the Mule API implementation's properties in Anypoint Exchange, then promote the Mule API implementation to the Production environment using Runtime Manager

D.

Use an API policy to change properties in the Mule API implementation deployed to the Staging environment and another API policy to deploy the Mule API implementation to the Production environment

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Questions 26

What are 4 important Platform Capabilities offered by Anypoint Platform?

Options:

A.

API Versioning, API Runtime Execution and Hosting, API Invocation, API Consumer Engagement

B.

API Design and Development, API Runtime Execution and Hosting, API Versioning, API Deprecation

C.

API Design and Development, API Runtime Execution and Hosting, API Operations and Management, API Consumer Engagement

D.

API Design and Development, API Deprecation, API Versioning, API Consumer Engagement

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Questions 27

What Mule application deployment scenario requires using Anypoint Platform Private Cloud Edition or Anypoint Platform for Pivotal Cloud Foundry?

Options:

A.

When it Is required to make ALL applications highly available across multiple data centers

B.

When it is required that ALL APIs are private and NOT exposed to the public cloud

C.

When regulatory requirements mandate on-premises processing of EVERY data item, including meta-data

D.

When ALL backend systems in the application network are deployed in the organization's intranet

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Questions 28

The implementation of a Process API must change.

What is a valid approach that minimizes the impact of this change on API clients?

Options:

A.

Update the RAML definition of the current Process API and notify API client developers by sending them links to the updated RAML definition

B.

Postpone changes until API consumers acknowledge they are ready to migrate to a new Process API or API version

C.

Implement required changes to the Process API implementation so that whenever possible, the Process API's RAML definition remains unchanged

D.

Implement the Process API changes in a new API implementation, and have the old API implementation return an HTTP status code 301 - Moved Permanently to inform API clients they should be calling the new API implementation

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Exam Code: MCPA-Level-1
Exam Name: MuleSoft Certified Platform Architect - Level 1
Last Update: Jun 17, 2024
Questions: 95
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