AD0-E128 Adobe Experience Manager Sites Developer Professional exam
Online proctored knowledge assessment using selected-response and product-scenario questions aligned to the published objectives.
- Type
- Written
- Delivery
- Online
- Duration
- 100 min
- Questions
- 50
Passing score: 32 Required correct answers out of the published total
Exam sections
Configurations
Configurations focuses on Recognize the purpose of AEM Dispatcher configurations and caching; Determine the correct steps to configure multi-site in AEM; Explain how to create and manage OSGi configurations; Determine the correct steps to manage custom Oak indices; Identify how to create and manage AEM custom logs. The useful preparation boundary is not only what each item means, but how it changes planning, implementation, analysis, or support decisions in experience manager sites developer work. This is one of the specific capability boundaries that gives Experience Manager Sites Developer Professional its role relevance.
Question notes
Official weighting places Configurations at 15 percent of this assessment. Questions in this area may combine conceptual recognition with applied judgment, asking candidates to interpret a condition, select an approach, or identify the consequence of a change. Treat the published outline for Adobe Experience Manager Sites Developer Professional exam as the limit on product detail the prompt can reasonably require.
Preparation tips
Review Configurations from both a builder's and an operator's perspective. Ask how it is planned and configured, then how its health, security, performance, and failure state are observed. Add a validation step that would convince another Adobe Experience Manager practitioner the outcome is correct.
AEM development
Coverage in AEM development includes Identify how to implement a proxy of a core-component; Given a scenario, identify how to create component functionality including the HTL, models, and services; Given a scenario, determine the correct steps to develop workflows; Given a scenario, outline the purpose of content fragments or experience fragments; Given a scenario, outline the purpose of content fragments or experience fragments; Given a scenario, determine the correct steps to implement editable templates. Candidates should understand both the intended workflow and the signals that indicate a design, configuration, analysis, or operational approach is not working as expected. Candidates should relate this material to Build and deployment wherever the workflow crosses domain boundaries.
Question notes
The provider assigns 37 percent of the published exam scope to AEM development. Questions can move between planning and operations, requiring candidates to recognize prerequisites, select a method, and anticipate how the completed change should be validated. For Experience Manager Sites Developer Professional, this domain should be interpreted alongside Build and deployment, not as a disconnected topic.
Preparation tips
Study AEM development through comparison. Contrast the main options, record their prerequisites and trade-offs, and practice selecting between them from short requirements instead of memorizing feature lists. Keep the final notes organized under AEM development so gaps remain traceable to the published outline.
Build and deployment
Build and deployment brings together Identify the correct Maven project structure; Given a scenario, identify how to configure projects from archetypes. The section matters because it tests whether candidates can translate official product knowledge into defensible choices for realistic experience manager sites developer work scenarios. For Experience Manager Sites Developer Professional, the practical connection to Environment maintenance is especially worth tracing.
Question notes
This domain represents 17 percent of the provider's current exam outline. Expect the assessment to probe distinctions between closely related options and to place Build and deployment inside scenarios where requirements determine the best response. Use the official Build and deployment subtopics to judge how deep the expected reasoning should go.
Preparation tips
Make a table of common Build and deployment symptoms, likely causes, decisive evidence, and corrective actions. Use it to work through short incidents until diagnosis follows evidence rather than pattern matching. Close the session by explaining how this work supports experience manager sites developer work without consulting notes.
Environment maintenance
Candidates encounter Identify the purpose of AEM maintenance releases; Identify how to configure AEM across topologies; Given a scenario, identify the issues with the replication process; Identify how to create custom Oak indexes in the Environment maintenance domain. The section links platform knowledge to practical consequences, including dependencies, trade-offs, validation methods, and recoverable failure conditions. Candidates should relate this material to Analyzing and Debugging wherever the workflow crosses domain boundaries.
Question notes
This domain represents 13 percent of the provider's current exam outline. Questions in this area may combine conceptual recognition with applied judgment, asking candidates to interpret a condition, select an approach, or identify the consequence of a change. For Experience Manager Sites Developer Professional, this domain should be interpreted alongside Analyzing and Debugging, not as a disconnected topic.
Preparation tips
Review Environment maintenance from both a builder's and an operator's perspective. Ask how it is planned and configured, then how its health, security, performance, and failure state are observed. Keep the final notes organized under Environment maintenance so gaps remain traceable to the published outline.
Analyzing and Debugging
The official outline places Given a scenario, identify which log to analyze; Given a scenario, determine how to debug the client libraries; Given a scenario, identify which steps are involved in debugging AEM dispatcher configurations and caching; Given a scenario, determine the steps to debug issues in AEM environments within Analyzing and Debugging. Candidates need to understand how the pieces relate, when each one is relevant, and what a sound result looks like in the context of Adobe Experience Manager. The domain is most useful when studied as part of the complete Experience Manager Sites Developer Professional workflow.
Question notes
This domain represents 18 percent of the provider's current exam outline. Where several answers seem reasonable, use provider-recommended behavior, explicit requirements, and the least disruptive complete solution to distinguish the strongest response. Use the official Analyzing and Debugging subtopics to judge how deep the expected reasoning should go.
Preparation tips
Connect Analyzing and Debugging to a real project or reference architecture. Identify where the official subtopics appear, which assumptions the design makes, and what would change under a different scale or risk profile. Keep the final notes organized under Analyzing and Debugging so gaps remain traceable to the published outline.
