Adobe AD0-E137 Adobe Experience Manager Sites Developer Expert Exam Practice Test

Workflow launchers in AEM are designed to monitor changes in specific repository paths such as /content, /content/dam, and /conf. However, changes under certain system-level paths, including /var, do not trigger workflows. This restriction is intentional, as /var is used for system-generated and internal data such as workflow instances, audit logs, and temporary nodes. Triggering workflows on changes under /var could result in recursive or unintended behavior. Option A is unrelated because Workflow Process Legacy Mode refers to backwards compatibility. Option B is incorrect, as AEM does allow system nodes under /var, but they are not workflow-launcher enabled. Adobe documentation makes clear that workflow launchers must be configured under supported content paths for them to execute correctly.

Modern AEM projects often include front-end build processes for handling CSS, JavaScript, and component-specific assets. Webpack is the recommended tool for managing dependencies, bundling code, minification, transpilation (e.g., ES6+ to ES5), and optimizing assets. It integrates with the AEM Maven build process and supports workflows like Single Page Applications (SPA) and client libraries. Option B, Apache Sling, is the underlying web framework for AEM, not a front-end tool. Option C, Maven, manages project builds and back-end dependencies but not front-end asset pipelines. Option D, the AEM Sites Console, is for authoring and managing pages, not development builds. Adobe documentation for SPA Editor and modern AEM projects consistently demonstrates Webpack as the standard tool for front-end optimization.

Explanation (Adobe Docs Reference):

Editable templates + Policies: Editable templates allow developers to restrict which components are available by defining policies that control allowed components for layout containers.

Content Fragment Model validation: Developers can define validation rules (e.g., regex, required fields, min/max length) directly in the content fragment model.

Options A, C, and D are incorrect:

Field validation is not configured in editable templates (A is wrong).

Workflows are not used for enforcing component usage (C is wrong).

Dynamic templates are deprecated in favor of editable templates (D is wrong).

Adobe Documentation:

“Editable templates support defining policies to determine which components can be used in the layout container.”

— AEM Templates – Defining Policies

“Content Fragment Models can include validation rules to ensure data integrity, including regex patterns, length restrictions, and required fields.”

— AEM Content Fragment Models – Validation Rules

The Oak query engine, which underpins AEM’s repository search and indexing capabilities, supports multiple query syntaxes. However, Adobe recommends using XPath or JCR-SQL2, with XPath being the most widely used. JCR-SQL (option A) is deprecated and should not be used in modern AEM implementations. Plain SQL (option B) is not supported as queries must operate within the JCR structure. Option C, XPath, integrates tightly with Oak’s indexing system and provides efficient query execution. Adobe documentation states explicitly that developers should use XPath or JCR-SQL2 for queries, as both are optimized for Oak’s indexing and repository structure. Since the question provides XPath as an option but not JCR-SQL2, XPath is the correct answer.

Explanation (Adobe Docs Reference):

In AEM SPA Editor, the MapTo function is used in the React (or Angular) component to map a frontend component to its corresponding AEM component resource type (Sling Model). This ensures data from the Sling Model is properly bound to the SPA component.

Correct: React component implements MapTo with the AEM component resource type.

Incorrect: The AEM Component or Sling Model itself does not implement MapTo.

Adobe Documentation:

“SPA components must call MapTo in the JavaScript app to map a frontend component to an AEM component resource type. This enables the Sling Model data to be injected into the SPA component.”

— AEM SPA Editor – MapTo Function

Explanation (Adobe Docs Reference):

The correct OSGi Declarative Services (DS) implementation in AEM:

Must use implements (not extends).

Must register the service interface (SimpleService.class).

Should return an implementation for getMessage().

Option D is the correct implementation.

Options A, B, C are wrong because:

A incorrectly uses extends.

B and C register the wrong service type (MySimpleService).

Adobe Documentation:

“An OSGi service implementation must implement its interface and be annotated with @Component(service=Interface.class) to register the service.”

— OSGi Services in AEM

The issue in this case is that the title field is declared but not annotated with @Inject. In Sling Models, all fields that should be populated from the resource or request must be annotated appropriately (@Inject, @ValueMapValue, or @Self). Without this annotation, the Sling Model cannot populate the field when adapting from the resource, resulting in the model not functioning as expected. Option A is incorrect because Resource.class is a valid adaptable for Sling Models. Option C does not apply because the problem is not with hard-coded paths but with injection. Option D is also incorrect because while @PostConstruct must be properly annotated, the root issue here is missing injection on the field. Adobe’s Sling Models documentation emphasizes correct use of injection annotations as a core requirement.

Explanation (Adobe Docs Reference):

The SAML Authentication Handler in AEM requires the following key properties:

path: Defines the content path where this handler applies (here /content/siteB).

idpUrl: The Identity Provider’s SAML endpoint (here https://www.idpB.com).

Other properties like serviceProviderEntityId and assertionConsumerServiceURL are also required in a real-world setup but the correct basic mapping in this scenario is option B.

Adobe Documentation:

“The SAML authentication handler is configured by setting path to the protected resource root and idpUrl to the Identity Provider endpoint.”

— Adobe AEM 6.5 – SAML Authentication Handler

When defining component style options in AEM, authors can select from pre-defined CSS classes by configuring them in the component’s cq:editConfig node under /cq:style. The correct properties are:

cq:styleClasses: Defines the list of CSS classes that authors can apply.

cq:styleLabel: Defines the label displayed in the authoring dialog for the style selection.

Options B, C, D are incorrect because they use invalid property names (cssClasses, styleLabel, cssStyles, cssLabel) which are not recognized by AEM.

From Adobe Documentation:

“Component styles can be defined using the cq:editConfig node. Authors can choose between style variations configured under cq:styleClasses with a descriptive cq:styleLabel.”

— AEM 6.5 – Defining Component Styles with cq:editConfig

— AEM Core Components – Style System

In Adobe Experience Manager Dispatcher configuration, cache-related settings are defined inside the dispatcher.any configuration files located under /etc/httpd/conf.dispatcher.d/cache/. By default, the dispatcher module loads its cache rules from the file named _cache.any. This file specifies which resources should be cached, ignored, or invalidated.

From Adobe Documentation:

“Cache configuration is defined in the dispatcher.any configuration file, typically found in /etc/httpd/conf.dispatcher.d/cache/_cache.any.”

— Adobe AEM Dispatcher Documentation – Cache Configuration (AEMaaCS & AEM 6.5+)

Explanation (Adobe Docs Reference):

AEM supports basic multi-tenancy through separation by content paths, ACLs, and templates. However, this is not true multi-tenancy. For strict isolation with no code/content overlap, separate AEM instances per tenant is required. Adobe’s official recommendation for true isolation (zero cross-tenant knowledge or sharing) is to run dedicated AEM environments per tenant.

Adobe Documentation:

“AEM supports multi-tenancy by allowing separation of content trees, ACLs, and components. However, for strict tenant isolation (true multi-tenancy), each tenant must be deployed on separate AEM environments.”

— Adobe AEM Multi-tenancy Concepts

By default, when saving dialog values, AEM stores them as String types in the JCR unless a type hint is provided. To ensure a checkbox is stored as a Boolean, developers must add a hidden TypeHint field to the dialog. This informs Sling Post Servlet about the correct JCR type when persisting values. Option A, using a JCR Event Listener, is inefficient and adds unnecessary complexity. Option C, using a Switch, would still result in a String unless the TypeHint is specified. Adobe documentation specifies that TypeHint fields should be added whenever developers need precise control over how values are stored, especially for Boolean, Long, or Date properties.

The recommended way to generate a new AEM project is by using the official Adobe AEM Maven Archetype. Developers must specify the correct groupId (com.adobe.aem) and artifactId (aem-project-archetype). The archetypeVersion should match the latest stable archetype version (e.g., 50 for AEM 6.5). The groupId of the project should be set to the organization’s package, in this case com.mysite. The appId defines the project name and should match the intended application (mysite). The version is defined as 2.0 to represent the project version, while aemVersion=6.5 ensures compatibility with AEM 6.5. Option A is invalid because the archetype groupId is incorrect and the values are mismatched. Option C contains placeholders and an invalid groupId. Adobe’s official documentation for generating projects specifies option B as the valid approach.

Explanation (Adobe Docs Reference):

Unit tests for Sling Models using wcm.io AEM Mocks (AemContext) require test content to be loaded into the mock JCR repository. This is usually done with:

ctx.load().json("/path/to/test-content.json", "/content");

Without loading node data, ctx.currentResource("/content/bar") won’t resolve anything, causing adaptTo(Flarp.class) to return null.

A is wrong: AemContext is correct for Sling Models in AEM.

B is wrong: @Rule applies to JUnit4, but the test uses JUnit5 with @ExtendWith.

C is correct: Loading JSON test content is required.

Adobe/WCM.IO Documentation:

“Use context.load().json() to load test content into the JCR repository for unit tests. Then set context.currentResource(path) to adapt resources to Sling Models.”

— wcm.io AEM Mocks Documentation

Explanation (Adobe Docs Reference):

Replication agents in AEM are responsible for transferring content and digital assets from the author instance to the publish instance (or to other targets like Dispatcher flush agents). This ensures that authored and approved content becomes available on the public site.

Options B and C are incorrect:

User permissions are not replicated by agents; they are managed by user synchronization.

Core Components are provided via Maven dependencies and not transferred via replication agents.

Adobe Documentation:

“Replication agents are central to AEM; they are used to publish (activate) content from an author to a publish environment, or to clear content from the dispatcher cache.”

— AEM Replication Agents