AEM Interview Q&A And Developer Certification Tests

Explore the AEM technology stack, featuring Apache Sling on the Java content repository, with bundles and the Apache Flex framework enabling modular development and RESTful JCR access.

Understand what a content management system is and how it helps create and manage content. Learn why dynamic sites need frequent updates and how a CMS enables efficient content management.

Explore a loosely coupled end-to-end CMS that supports multiple brands and sites, with a high-performance JCR repository, content and code separation, scalable architecture, workflows, digital assets, and robust search.

Aem as a cloud service delivers a cloud native, auto-scaling platform that lets developers configure and extend aem while ci/cd keeps projects on the latest version and content.

Learn the key terminologies of AEM as a cloud service, including AM assets, AM image, sites, instances and pipelines, author/preview/published tiers, cloud provider, content repository, CDN, and orchestration engine.

Learn how the dispatcher.any file stores the aem dispatcher configuration, with the ability to rename or relocate it during installation, and how author_dispatcher.any and dispatcher.any represent author and publish instances.

Explore CRX as a content repository and data storage system for web content, digital assets, libraries, and configuration, with XD lite embedded in ACM enabling project creation and file editing.

Discover how the Java content repository (JCR) provides an interface for Java applications to interact with content repositories, and how GCR offers hierarchy, semi-structured content, and access control.

Explore implicit objects in AEM, including sling request, sling response, sling resource, and resource resolver, and learn how resources, page manager, and designer objects provide design and style properties.

Compare CRX2 and CRX3, highlighting CRX2's disk-based persistence with a data file format for high performance, and CRX3's three-tier architecture with jackrabbit-based persistence and implicit indexing.

Explain how OSGi provides a modular Java service platform with bundles that can be remotely installed, started, stopped, updated, or uninstalled, while managing services via a registry and APIs.

Compare a package and a bundle: a package is a zip of serialized content with repository data; a bundle is a coupled, dynamically loaded set of jar classes with dependencies.

Understand configuration services in OSGi by using the configuration admin service as a central hub that persists and distributes configuration data to configured components and managing bundles with deployed configuration.

Explore how OSGi components and services use bundles to register runtime services, enabling Java objects to act as services with loose coupling.

Explore the Sylvius service factory, a special class that creates individual service object instances for different binders, enabling per-binder configuration such as the log service printing the logging bundles ID.