Free Adobe AD0-E134 Practice Exam with Questions & Answers | Set: 2

The /glob attribute is mandatory for all filter rules in the dispatcher configuration. It specifies a pattern that is matched against the incoming request URL. If the pattern matches, the rule is applied. The /glob attribute can use wildcards (*) and placeholders ($1, $2, etc.) to match parts of the URL. References:https://experienceleague.adobe.com/docs/experience-manager-dispatcher/using/configuring/dispatcher-configuration.html?lang=en#filter-rules

When an AEM environment is cloned and the domain and IPs are changed, it is crucial to reconfigure the Transport URI of both the flush and replication agents to ensure content activation works correctly.

Here’s the step-by-step process to reconfigure these settings:

Access the AEM Tools Console: Log into your AEM instance and navigate to Tools > Deployment > Replication.

Update Replication Agents:

Go to the "Agents on author" section.

Select each replication agent (usually named "default" or based on your custom setup).

Edit the agent configuration.

Update the Transport URI to reflect the new domain and IP address.

Save the configuration.

Update Flush Agents:

Navigate to the dispatcher flush agents.

Select each flush agent.

Edit the agent configuration.

Update the Transport URI with the new domain and IP address.

Save the configuration.

Test the Configuration: After updating the URIs, test the content activation process to ensure that the replication and flushing mechanisms are working correctly with the new settings.

These steps ensure that the communication paths for content replication and cache flushing are correctly established, thereby maintaining the integrity and functionality of content activation.

References:

AEM Replication Documentation

Dispatcher Configuration Documentation

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

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.

References:

npm Documentation

Managing Dependencies in AEM Projects

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

To read a list of spoken languages from the configuration of an OSGi service, the correct snippet to use is Option B. This snippet demonstrates how to define and read the configuration properties using the OSGi R7 annotations (@ObjectClassDefinition and @AttributeDefinition), which are the recommended way for defining OSGi configurations in modern AEM projects.

Here is the detailed explanation of the snippet:

Option B Snippet Explanation:

Component Definition:

@Component(

service = { LanguageService.class }

)

@Designate(ocd = LanguageServiceImpl.Config.class)

public class LanguageServiceImpl implements LanguageService {

 This defines an OSGi component and designates a configuration class for it.

 Configuration Interface:

@ObjectClassDefinition(

name = "Sample - Language Service",

description = "OSGi Service providing information about languages"

)

@interface Config {

@AttributeDefinition(

name = "Sample Languages",

description = "List of spoken languages"

)

String[] languages() default { "English", "Japanese" };

}

 This defines the configuration interface with annotations to describe the configuration properties. The languages attribute is defined with a default value of {"English", "Japanese"}.

 Activate Method:

private String[] languages;

@Activate

protected void activate(Config config) {

this.languages = config.languages();

}

The activate method reads the configuration values and assigns them to the instance variable languages when the service is activated.

Here is the complete Option B code:

@Component(

service = { LanguageService.class }

)

@Designate(ocd = LanguageServiceImpl.Config.class)

public class LanguageServiceImpl implements LanguageService {

@ObjectClassDefinition(

name = "Sample - Language Service",

description = "OSGi Service providing information about languages"

)

@interface Config {

@AttributeDefinition(

name = "Sample Languages",

description = "List of spoken languages"

)

String[] languages() default { "English", "Japanese" };

}

private String[] languages;

@Activate

protected void activate(Config config) {

this.languages = config.languages();

}

// Additional methods to use the languages array

}

By using this approach, you ensure that your OSGi service can dynamically read and use the list of spoken languages specified in its configuration, making it adaptable to different environments and requirements.

References:

OSGi R7 Annotations

Adobe Experience Manager - OSGi Configuration

A Synonym filter can help to map different terms that have the same meaning, such as “cat” and “feline”. A LowerCase filter can help to normalize the case of the terms, so that “cats and dogs” and “Cats and Dogs” are treated the same.

Utilizing model props to drill down and access or set the state on desired components is the least complex approach for sharing information between Single Page Application (SPA) components in AEM.

Here’s why using model props is effective:

Simplicity: This approach leverages the existing component hierarchy and properties, making it straightforward to pass data between components.

Direct Access: Model props allow for direct access to the state and properties of parent or sibling components, enabling easy data sharing.

Minimal Setup: Unlike implementing a state library or customizing container components, using model props requires minimal additional setup, reducing complexity and potential overhead.

Steps to utilize model props for state management:

Define the State in the Parent Component: Ensure that the parent component maintains the state that needs to be shared.

Pass Props to Child Components: Pass the necessary state and any setter functions as props to the child components. For example, in a React-based SPA, you can do this using JSX syntax:

function ParentComponent() {

const [sharedState, setSharedState] = useState(initialState);

return (

);

}

Access and Modify State in Child Components: In the child components, access and modify the shared state using the props passed from the parent:

function ChildComponentA({ sharedState, setSharedState }) {

return (

);

}

By using this approach, you ensure a simple and effective way of managing and sharing state across components in your SPA, adhering to best practices for component-based architecture.

References:

React Documentation on Props

AEM SPA Editor Documentation

The aemanalyser-maven-plugin is a Maven plugin that checks if all the requirements declarations made in OSGi bundles are satisfied by the capabilities declarations of other bundles included in the Maven project. This plugin ensures that the OSGi bundles are consistent and can be resolved at runtime. The plugin also checks for other issues such as API compatibility, package versioning, and bundle start order. References: https://experienceleague.adobe.com/docs/experience-manager-cloud-service/implementing/developing/aem-project-content-package-structure.html?lang=en#build-analyzer-maven-plugin https://github.com/adobe/aemanalyser-maven-plugin

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

AEM as a Cloud Service does not support custom OSGi configuration runmodes, such as “config.author.staging”. Only specific OSGi configuration runmodes, such as “config.author” or “config.publish”, are supported. These runmodes are used to apply configurations to specific services, such as author or publish. The specific runmodes can be combined with environment variables to achieve different configurations for different environments. References: https://experienceleague.adobe.com/docs/experience-manager-cloud-service/implementing/deploying/configuring-osgi.html?lang=en#run-modes https://experienceleague.adobe.com/docs/experience-manager-cloud-service/implementing/deploying/environment-variables.html?lang=en