AEM Interview Questions
Interview Top Questions (From Basics To Advanced)
Whether you’re a novice just starting out or an experienced professional looking to brush up on your skills, we’ve put together the Top 10 AEM Interview Questions and Answers in our AEM Training Tutorials to help you prepare with confidence.From “What is AEM?” to more complex subjects like AEM architecture, its integration with Adobe Marketing Cloud, and working with components, templates, dialogs, and workflows, these thoughtfully chosen questions cover it all.
This guide is intended to give you concise, useful explanations so you can enter your interview feeling ready for the position.
Basic AEM Interview Questions (Freshers)
What is AEM and why is it used?
AEM (Adobe Experience Manager) is a comprehensive content management solution for building websites, mobile apps, and forms. It allows marketers and developers to create, manage, and deliver digital experiences across channels.
What are the main components of AEM?
Sites
Assets
Forms
Communities
Screens
AEM as a Cloud Service
What is a component in AEM?
A component is a reusable module in AEM used to render content on a web page, such as text, image, or a custom-designed block.
What is a template in AEM?
Templates define the structure of a page and allow authors to create consistent content pages.
Difference between static and editable templates?
Static templates are fixed and managed by developers, while editable templates can be managed and modified by template authors through the Template Editor.
Intermediate AEM Interview Questions
1. What is Sling in AEM?
Answer:
Apache Sling is the web framework used by AEM. It maps HTTP requests to content resources using the URL and provides RESTful access to content.
2. What is the Role of OSGi in AEM?
Answer:
OSGi (Open Services Gateway initiative) is a framework for modular development. AEM uses Apache Felix as its OSGi container to manage bundles (components).
3. What are Clientlibs in AEM?
Answer:
Clientlibs (Client Libraries) are used to include CSS and JavaScript in components. They support dependency management and minimize loading time using minification and concatenation.
4. What is the Difference between Sling Models and WCMUsePojo?
Answer:
| Feature | Sling Models | WCMUsePojo |
|---|---|---|
| Annotation | @Model | Extend WCMUsePojo |
| Dependency Injection | Supported | Manual |
| Performance | Better | Slightly slower |
5. What is Dispatcher in AEM?
The Dispatcher is AEM’s caching and/or load balancing tool. It caches pages as static HTML to improve performance and protects the AEM publish instance from high traffic.
Advanced AEM Interview Questions
1. How does Editable Template differ from Static Template?
Answer:
| Feature | Editable Template | Static Template |
|---|---|---|
| Created In | Template Editor | CRXDE Lite |
| Dynamic Editing | Yes (Policies, Layouts) | No |
| Reusability | High | Limited |
2. Explain AEM Workflow and its Use Cases.
Answer:
AEM Workflow is a process engine to automate content-centric processes such as approvals, publishing, translation. Workflows use models, instances, and participants.
3. How is Content Versioning Handled in AEM?
AEM uses JCR versioning. Each node can be made versionable by adding mix:versionable, and versions are stored under
4. Explain how to create a custom OSGi service in AEM.
Answer:
Create an interface with
@ProviderType.Create an implementation class with
@Component(service = Interface.class).Implement the logic.
Use
@Referenceto inject the service where needed.
5. What is the difference between Page Properties and Component Dialog Properties?
Answer:
Page Properties: Metadata related to the whole page (title, description, etc.).
Component Dialog Properties: Configuration or content for a specific component.