Get Adobe AD0-E134 Exam Practice Questions - Real and Updated

Answer : C

An AEM Developer should add a front-end dependency in the package.json file. The package.json file is a standard configuration file for managing dependencies in JavaScript projects, including those using npm or Yarn as package managers.

Here's how to add a front-end dependency:

Open the package.json File: This file is typically located at the root of your project.

Add the Dependency: Add the required front-end dependency under the dependencies or devDependencies section. For example, to add lodash as a dependency:

{

'name': 'my-aem-project',

'version': '1.0.0',

'dependencies': {

'lodash': '^4.17.21'

}

}

Install the Dependency: Run the following command to install the new dependency:

npm install

Verify Installation: Ensure that the dependency has been added to the node_modules directory and is listed in the package-lock.json file.

The package.json file is the central place to manage all front-end dependencies, making it easy to track, update, and share dependencies across the development team.

npm Documentation

Managing Dependencies in AEM Projects

These steps ensure that the front-end dependencies are managed efficiently and consistently within the AEM project.

Answer : D

The /enableTTL ''1'' configuration must be applied to enable re-fetching of cached items based on Cache Headers sent by AEM. This configuration enables the Time To Live (TTL) feature of dispatcher, which allows dispatcher to check the Cache-Control and Expires headers of the cached files and re-fetch them from AEM if they are expired. Reference: https://experienceleague.adobe.com/docs/experience-manager-dispatcher/using/configuring/page-invalidation.html?lang=en#time-based-cache-invalidation

Answer : B

Backward Compatibility with the previous AEM Version is out of scope for the Pattern Detector tool, while doing an AEM upgrade. The Pattern Detector tool is a tool that scans an existing AEM code base and identifies patterns that are incompatible with AEM as a Cloud Service or newer versions of AEM on-premise. The tool does not check for backward compatibility with older versions of AEM, as this is not a requirement for upgrading. Reference: https://experienceleague.adobe.com/docs/experience-manager-cloud-service/moving/cloud-migration/pattern-detector.html?lang=en https://experienceleague.adobe.com/docs/experience-manager-cloud-service/moving/cloud-migration/pattern-detector/patterns-detected.html?lang=en

Answer : A

The warning WARN* Traversed 1000 nodes with filter Filter (query=select...) indicates that the query is performing a traversal instead of using an index. This results in poor performance, especially when the client has a large number of nodes (e.g., more than 100,000).

To resolve this issue, you should create a custom Oak index for the custom page property. This ensures that the queries can leverage the index for efficient data retrieval.

Steps to create a custom Oak index:

Define the Oak Index:

Navigate to the /oak:index node in CRXDE Lite (http://localhost:4502/crx/de).

Create a new node of type oak:QueryIndexDefinition.

Configure the Index:

Set the properties of the new index node to define the indexing rules for the custom page property.

{

'jcr:primaryType': 'oak:QueryIndexDefinition',

'type': 'property',

'propertyNames': ['customPageProperty'],

'reindex': true,

'async': 'async'

}

Deploy and Reindex:

Save the changes and initiate a reindexing process.

Ensure that the reindex flag is set to true for the newly created index.

Validate the Index:

Use the Index Manager or the AEM Web Console to validate that the new index is enabled and functioning correctly.

By creating a custom Oak index for the custom page property, the queries will be optimized to use the index, significantly improving the search performance and resolving the client's issue.

Adobe Experience Manager - Oak Indexing

Apache Jackrabbit Oak - Indexing

Answer : A

The issue arises because the anonymous user does not have the necessary read permissions for the /content directory. When using Sling context-aware configurations, access to the configuration resource is required. If the anonymous user lacks read permissions, the configuration cannot be retrieved, resulting in a null value.

To fix this issue, you need to grant read permissions to the anonymous user for the /content directory.

Steps to apply read permissions:

Access CRXDE Lite: Log into your AEM instance and navigate to CRXDE Lite (http://localhost:4502/crx/de).

Navigate to the /content Directory: In the CRXDE Lite interface, browse to the /content directory.

Set Permissions:

Right-click on the /content directory and select 'Permissions'.

Add the anonymous user (if not already present).

Grant read permissions to the anonymous user.

Save Changes: Apply the changes and ensure that they are saved correctly.

Test the Configuration: Log out of the AEM instance and test the context-aware configuration as an anonymous user to ensure that the configuration resource can now be retrieved.

By granting read permissions to the anonymous user for the /content directory, you allow access to the necessary configuration resources, resolving the issue.

Adobe Experience Manager Security Permissions