The Adobe Experience Manager Sites Developer Exam (AD0-E134) validates your ability to design, build, and maintain enterprise web experiences using Adobe Experience Manager. This exam is intended for developers who work with AEM components, templates, and deployment workflows in production environments. This page provides a clear roadmap of exam topics, question formats, and practical study strategies to help you prepare effectively.
Use this topic map to guide your study for Adobe AD0-E134 (Adobe Experience Manager Sites Developer Exam) within the Adobe Experience Manager path.
The AD0-E134 exam measures both foundational knowledge and the ability to apply concepts in real-world development scenarios. Questions are designed to assess your understanding of AEM architecture, component lifecycle, and operational decision-making.
Questions progress in difficulty, requiring you to connect concepts across installation, development, and troubleshooting workflows to reflect actual project demands.
A structured study plan aligned to the five core topics ensures you cover all exam domains without gaps. Dedicate time each week to one or two topics, complete practice questions, and review explanations to reinforce weak areas.
Explore other Adobe certifications: view all Adobe exams.
Strengthen your preparation with up-to-date resources from validexamdumps.com. These materials align to AD0-E134 and cover practical scenarios with clear explanations.
Visit the exam page to download the PDF, Online Practice Test, or get a Bundle Discount offer for both formats: Adobe Experience Manager Sites Developer Exam.
Templates and Components, along with Installation and Configuration of AEM, typically account for a significant portion of exam questions because they form the foundation of day-to-day AEM development. OSGi Services and Packaging and Deploying AEM projects are also heavily tested, as they reflect real production workflows. Troubleshooting appears consistently but often as scenario-based questions that integrate other topics.
In practice, proper AEM installation and configuration provides the runtime environment where components and templates execute. OSGi services run within that environment and often power the business logic behind component rendering and data retrieval. For example, a custom component might call an OSGi service to fetch content from an external system, and that service must be properly configured and registered in the AEM bundle. Understanding these connections helps you design maintainable solutions and troubleshoot integration issues.
At least 6-12 months of practical AEM development experience is recommended, including building components, configuring templates, and deploying projects to multiple environments. Hands-on labs focusing on component creation, bundle development, and package deployment are especially valuable. If you lack production experience, prioritize setting up a local AEM instance and completing guided exercises that simulate real project tasks.
Candidates often confuse HTL syntax with older templating languages, misunderstand OSGi service lifecycle and dependency injection, or overlook dispatcher configuration details that affect deployment success. Another frequent error is not reading scenario questions carefully enough to identify the specific constraint or requirement that determines the correct answer. Reviewing explanations for practice questions helps you avoid these pitfalls.
In your final week, focus on weak topic areas identified during practice tests rather than re-reading everything. Run one or two full-length timed mock exams to build pacing and identify any remaining knowledge gaps. On the day before the exam, review key definitions, common configuration patterns, and troubleshooting workflows at a high level, then rest well to arrive focused and confident.
A customer adds third-party client libraries to add some features in an existing AEM application, which will significantly reduce
performance.
How should the developer optimize the site?
With AEM as a Cloud Service, which format should be used for the OSGI configuration files?
For AEM as a Cloud Service, the correct format to use for OSGi configuration files is .cfg.json. This format is specifically designed for use in AEM as a Cloud Service and supports both structured and unstructured data, making it versatile for various configuration needs.
Steps to create and deploy OSGi configurations in .cfg.json format:
Create Configuration File: Create a .cfg.json file in your codebase, typically under the apps directory, for example:
/apps/myproject/config/org.apache.sling.commons.log.LogManager.cfg.json
Define Configuration: Add your configuration properties in JSON format:
{
'org.apache.sling.commons.log.level': 'debug',
'org.apache.sling.commons.log.file': 'logs/error.log'
}
Deploy to AEM: Deploy the configuration along with your code package to AEM as a Cloud Service. The configuration will be applied automatically.
Which property under /cache on dispatcher.any file identifies the directory where cached files are stored?
An application development team needs to create a multi-channel application that uses AEM as a headless CMS Which feature should be used to maintain structured data for this application?
