AD0-E134 Adobe Experience Manager Developer Exam Questions and Answers

To push a code fix into the current release candidate, the best practice is to cherry-pick the fix commit into the release candidate branch. Cherry-picking allows you to apply specific changes from one branch to another, ensuring that only the necessary fixes are included without introducing unrelated changes.

Here’s how to cherry-pick a commit:

Identify the Commit: Locate the commit hash of the fix you need to apply. This can be found in your version control system (e.g., Git).

Checkout the Release Candidate Branch:

git checkout release-candidate-branch

Cherry-pick the Commit:

git cherry-pick

Resolve Conflicts(if any): If there are conflicts, resolve them manually and then continue the cherry-pick process:

git add

git cherry-pick --continue

 Test the Changes: Ensure that the changes are tested thoroughly in the release candidate environment to confirm the fix works as expected.

 Push the Changes:

git push origin release-candidate-branch

Cherry-picking ensures that only the required changes are applied to the release candidate, maintaining the stability and integrity of the codebase.

References:

Git Cherry-pick Documentation

The Apache Sling Logging Logger Configuration and Apache Sling Logging Writer Configuration are the OSGi configurations that the developer should use to create a Logger and Writer pair for the company’s application logging. The Logger Configuration defines the log level and the log file name for a given logger name or category. The Writer Configuration defines the file size, number of files, and file location for a given log file name. References:https://experienceleague.adobe.com/docs/experience-manager-65/deploying/configuring/configure-logging.html?lang=en#configuring-log-files

The ui.config project, (/config/…/config.) folder is the location where the OSGi configuration should be created for a runmode-specific configuration for an AEM as a Cloud Service implementation. The ui.config project contains OSGi configurations that are deployed to /apps in the repository. The config. folder specifies the runmode for which the configuration is applicable, such as author or publish. References:https://experienceleague.adobe.com/docs/experience-manager-cloud-service/implementing/deploying/configuring-osgi.html?lang=en#project-structure

A proxy component is a site-specific component that inherits from a core component and allows customization of the component name, group, dialog, and behavior. A proxy component can refer to any version of the core component by changing the sling:resourceSuperType property. A custom sling model can be used to implement the logic for adding the page title as prefix to the text property. A component template can be used to define the layout of the component.

The inability to run the Best Practice Analyzer (BPA) in AEM is most commonly due to the AEM Developer not having the necessary administrative rights. The Best Practice Analyzer is a tool that requires certain permissions to execute, typically administrative privileges.

Here’s a detailed explanation:

Administrator Rights Requirement: The Best Practice Analyzer tool needs access to various parts of the AEM system, including configuration settings and repository data, which require administrator-level permissions. Without these permissions, the tool cannot run properly.

Permissions Check: Verify that the AEM Developer has admin rights. This can be done by checking the user roles in the AEM User Management console. Ensure that the user is part of the "administrators" group or has equivalent privileges.

Running BPA: Once the correct permissions are in place, the developer can navigate to the Best Practice Analyzer tool in AEM and execute it. The BPA will then analyze the AEM instance for compliance with best practices.

Version Compatibility: Note that while this specific issue is related to permissions, it’s also important to ensure that the BPA tool version is compatible with the AEM version being used. In this case, the BPA supports AEM version 6.4 and above.

Steps to assign admin rights:

Log into AEM: As an existing admin, log into the AEM instance.

Navigate to User Management: Go to Tools > Security > Users.

Add User to Admin Group: Find the user and add them to the "administrators" group.

Save and Log Out: Save the changes and ask the user to log out and log back in to acquire the new permissions.

References:

Adobe Best Practice Analyzer Documentation

AEM User Management Documentation

These steps should resolve the issue and enable the AEM Developer to run the Best Practice Analyzer tool successfully.

This syntax allows the developer to reference a secret variable that is stored in the Cloud Manager UI under Environment Details > Variables. The secret variable name must start with a lowercase letter and can contain alphanumeric characters and underscores.References: https://experienceleague.adobe.com/docs/experience-manager-cloud-service/implementing/deploying/configuring-osgi.html?lang=en#environment-specific-configuration

The com.day.cq.workflow.exec.ParticipantStepChooser interface is intended for implementations that will define the participant dynamically. This interface replaces the deprecated com.day.cq.workflow.exec.ParticipantChooser interface. The method getDynamicParticipant returns the dynamically resolved Principal id based on the work item, workflow session and metadata map parameters.References:https://developer.adobe.com/experience-manager/reference-materials/cloud-service/javadoc/com/day/cq/workflow/exec/ParticipantStepChooser.html

Option C is the AEM dependency that provides APIs for all AEM environments. Option C uses the uber-jar dependency with the provided scope and the classifier set to apis. The uber-jar dependency contains all the public Java APIs that are available in AEM. The provided scope indicates that the dependency is not required for runtime, as it is already provided by the AEM platform. The apis classifier indicates that only the API classes are included in the dependency, not the implementation classes. References: https://experienceleague.adobe.com/docs/experience-manager-cloud-service/implementing/developing/aem-project-content-package-structure.html?lang=en#project-dependencies https://helpx.adobe.com/experience-manager/6-4/sites/developing/using/htl/eclipse-setup.html

The developer should add the defaultInjectionStrategy = DefaultInjectionStrategy property to the @Model Class annotation to fix the snippet. The defaultInjectionStrategy property defines how the Sling Model handles missing or null values for the injected fields. By default, the Sling Model uses the REQUIRED injection strategy, which means that all fields must have a non-null value or else an exception is thrown. By setting the defaultInjectionStrategy property to OPTIONAL, the Sling Model allows null values for the injected fields and does not throw an exception. This way, if the page field is null because the resource is not a page, the Sling Model can still work without errors.References: https://sling.apache.org/documentation/bundles/models.html https://sling.apache.org/documentation/bundles/models.html#optional-injection

The Deployment Manager is a role that can configure or run pipelines in Cloud Manager. The Deployment Manager can create and edit programs and environments, configure pipelines, start and cancel pipeline executions, and approve or reject deployments to production. The Deployment Manager role requires an IMS ID that is associated with the Adobe ExperienceCloud product profile. References: https://experienceleague.adobe.com/docs/experience-manager-cloud-service/implementing/using-cloud-manager/adding-users-to-programs-and-environments.html?lang=en#roles-and-responsibilities https://experienceleague.adobe.com/docs/experience-manager-cloud-service/implementing/using-cloud-manager/cloud-manager-user-roles.html?lang=en