Adobe Adobe Experience Manager Sites Developer Expert AD0-E137 Exam Dumps: Updated Questions & Answers (October 2025)

The correct HTL syntax combines the page path and the suffix in a structured format where the final .html extension appears at the end of the generated URL. In AEM, links must resolve to valid Sling resources that end in .html for pages, and suffixes can be appended before the extension. Option B correctly creates the path /content/testsite/en/page1/product/test1.html, which is a valid and Sling-resolvable path. Option A incorrectly places .html too early, producing an invalid URL that AEM cannot resolve. Option C inverts the intended relationship between the path and suffix. Adobe documentation for HTL and URL construction highlights that Sling requires .html as the standard extension for page rendering, and suffixes should precede this extension.

Text pre-extraction is recommended during reindexing of existing Lucene indexes that have binary extraction enabled. Binary extraction is the process where text content is extracted from binary files (such as PDFs or Word documents) for indexing. During reindexing, extracting text repeatedly from large binaries can cause performance degradation. Pre-extraction allows text to be extracted once and reused during indexing, significantly reducing reindexing time and system load. Option B is incorrect because small repositories don’t require pre-extraction optimization. Option C is also incorrect, as images generally don’t involve binary text extraction unless paired with OCR. Adobe highlights pre-extraction as a performance optimization technique for reindexing scenarios involving binary text content.

The correct approach is to use the Query Debugger in AEM, which provides detailed insights into query performance, including query cost, traversal warnings, and which indexes are being used. The Explain Query tool is a lower-level utility but does not provide the same AEM-specific integration and insights as the Query Debugger. Updating Lucene indexes (Option C) might eventually be needed, but the first step is always to analyze query performance and confirm whether the issue is due to indexing. Adobe documentation emphasizes using the Query Debugger under /libs/granite/operations/content/diagnosistools/queryPerformance to identify query inefficiencies and missing index configurations before applying fixes.

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

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.

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.

The correct approach to implementing an OSGi service in AEM is to use the Declarative Services annotation @Component(service = Interface.class). This ensures that the OSGi container properly registers the service against its interface, making it available for injection into other services, Sling Models, or servlets. In this case, the service is required to fetch store locations from an external API. Using an HTTP client within the OSGi service is the appropriate method to manage these requests. Option A is invalid because @OSGIService is not a valid annotation for service declaration. Option C is incorrect because @Service is not an OSGi Declarative Services annotation in this context. Adobe emphasizes encapsulating external API logic in OSGi services so that components and Sling Models can consume the data in a decoupled manner. This promotes separation of concerns and reusability.

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.

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

In multi-module AEM Maven projects, the all module is responsible for packaging and deploying all submodules. To ensure a new module is included during installation, it must be listed in the embeddeds section of the filevault-package-maven-plugin configuration inside the all module. This ensures the module is packaged into the final deployable ZIP and installed into AEM. Option A and B are incorrect because the maven-bundle-plugin manages OSGi bundle metadata, not multi-module embedding. Adobe’s official archetype documentation specifies that developers must add new modules to the embeddeds configuration for them to be recognized in the final deployment.