Q. Why is AEM preferable over other Content Management Systems (CMS)? What level of control does AEM provide you with?
The capacity to build custom digital experiences that are customised to the particular user is AEM’s major benefit. AEM lets customers manage digital content efficiently by providing best-in-class features such as content workflows, digital asset management, social, and multi-channel collaboration. AEM is an amazing solution for managing mobile applications, mobile websites, eCommerce, and marketing campaigns, in addition to simple website management. AEM provides a road ahead for digital marketing when combined with other Adobe Marketing Cloud tools.
Without having to work on numerous sets of assets, AEM allows you to create unlimited customizable variations of your website, including the format, distribution method, styles, and more. By connecting with Adobe Creative Cloud to develop and modify assets, AEM makes it simple to connect your creative and marketing workflows. With straightforward content authoring, AEM enables your team to design, build, and manage interactive and responsive digital experiences. An easy-to-use interface can be used to handle images, videos, content, and any other content components. Adobe Analytics data can help you create tailored and targeted experiences. Examine your customers’ habits and make the required changes to your website to boost engagement and income.
Q. Explain the difference between CQ5.4 and CQ5.5.
Before version 5.5, CQ was built on a servlet container (CQSE by default, but others may be used) that ran multiple web applications: one for the CRX content repository and another for the OSGi container, which contained Sling and AEM. The majority of the request processing was handled by the Sling web app, which was connected to the root. The following are some points to remember for CQ5.5:
The OSGi container is at the root of CQ 5.5 and AEM, with the OSGi HTTP service, supported by Sling, acting as the only request handling endpoint.
Along with the many services that make up the rest of the AEM functionality, the CRX content repository is now just another OSGi service. These modifications have no impact on AEM or Sling-based apps.
Because of the new design, AEM’s quickstart jar installation can no longer enable the use of other web applications alongside AEM.
The war version of AEM, on the other hand, is designed to be installed in an application server alongside other web applications.
Three new connectors for Adobe products – Creative Suite, Scene7, and Search&Promote – have been added.
The authors will be able to work directly on mobile applications.
Hybrid software was partnered with to give some wonderful eCommerce functionality.
Undo(Ctrl+z) and Redo(Ctrl+y) functions have been added.
Q. What is AEM Testing?
For automated tests for your AEM UI, AEM provides the Bobcat testing framework. This framework, which provides a Javascript API for generating tests, allows you to write and run UI tests directly in a web browser. It also makes use of Hobbes.js, a Javascript-based testing package. The Hobbes.js framework was created as part of the development process for testing AEM and is now available for public usage for testing your AEM apps. It’s an open-source test automation framework for web application functional testing.
Q. List different type of AEM connectors?
The AEM connector fetches several types of documents such as Page objects and Asset objects. Connector fetches access control lists (ACLs) for document-level security. It is Search engine independent. The connector runs from any machine with access to the given AEM server that supports optional content fetching. It provides Connection throttling.
Q. What is OSGi?
The full form of OSGi is the Open Service Gateway Initiative. It is also a Java framework that is used for developing and deploying modular software programs and libraries.
Q. Explain the life cycle of OSGI bundle?
The OSGi Life-Cycle layer adds bundles that can be dynamically installed, started, stopped, updated, and uninstalled. Life cycle operations are fully protected with the security architecture.
You can say that the OSGi Life-cycle includes the following steps:
- ACTIVE
- STOPPING
- STARTING
- RESOLVED
- INSTALLED
- UNINSTALLED
INSTALLED – The bundle has been installed into the OSGi container, but some of the bundle’s dependencies have not yet been met. The bundle requires packages that have not been exported by any currently installed bundle.
RESOLVED – The bundle is installed, and the OSGi system has connected up all the dependencies at a class level and made sure they are all resolved. The bundle is ready to be started. If a bundle is started and all of the bundle’s dependencies are met, the bundle skips this state.
STARTING – A temporary state that the bundle goes through while the bundle is starting, after all, dependencies have been resolved. The BundleActivator.start method will be called and this method has not yet returned.
ACTIVE – The bundle is running. Disabled while Spring is doing its stuff. Spring scans the Spring configuration and builds the context, then hands the context to the plugin. The plugin needs the context in order to create instances of each plugin module.
STOPPING – A temporary state that the bundle goes through while the bundle is stopping. The BundleActivator.stop method has been called but the stop method has not yet returned.
UNINSTALLED – The bundle has been removed from the OSGi container.
Q. What is dispatcher in AEM?
The dispatcher is the Adobe Experience Manager’s caching and load balancing tool. It also helps to protect your AEM server from attack.
Q What is AEM Brackets Extension?
The AEM Brackets Extension provides a smooth workflow to edit AEM components and client libraries and leverages the power of the Brackets code editor, which gives access from within the code editor to Photoshop files and layers. The easy synchronization provided by the extension (no Maven or File Vault required) increases developer efficiency and also helps front-end developers with limited AEM knowledge to participate in projects. This extension also provides some support for the HTML Template Language (HTL), which takes away the complexity of JSP to make component development easier and more secure.
Q. What do you understand by extending a component?
Extending components means add complexity and verbosity to your code, and in some cases, additional performance overhead.
Q. What is FileVault Tool (VLT) in AEM?
The full form of VLT is the Jackrabbit FileVault tool. It is a tool developed by The Apache Foundation that maps the content of a Jackrabbit/AEM instance to your file system. It has similar functions as a source control system client such as a Subversion (SVN) client. It provides normal check-in, check-out, and management operations, as well as configuration options for flexible representation of the project content.
Q. What’s new in AEM 6.5?
AEM 6.5 release is customer focussed, it conveys development that empowers marketers and IT experts to work together on the quick conveyance of customized brand experience.
Q. What is Sling?
Sling TV is an app-based service through which you can watch live TV and programs that you record on your DVR such as cable TV, but you can pick and choose which channels and features you want. All you need is internet access and a compatible device and you can watch TV just like people did way back in the 2000s. You can also add premium channels, just like a cable subscription, and you will have access to live TV as you would with cable. There are no contracts, so you’re billed monthly and can cancel or add channels.
Q. What is sightly in AEM?
Test Sightly Component is Lightweight, Fast, Secure, Code-less, Powerful. It has a Straight-forward API for logic, allowing it to do virtually anything. It also has a simple & restricted feature set.
Q. What is HTL?
The HTML Template Language (HTL) associated with Adobe Experience Manager (AEM) is the preferred and recommended server-side template system.
Q. What is use of Activator.java file?
Activator.java is a package in java that facilitates remote object activation.
Q. In AEM, what is a workflow and a workflow model?
The workflow feature in AEM allows users to automate tasks in the CMS (Content Management System) instance. A workflow is a well-defined series of actions that include participants, a process, and possibly certain tools. When many procedures can execute simultaneously, they might be either sequential or parallel. In AEM, a workflow is similar to a flowchart in that it outlines a series of procedures that must be completed by various participants in order to produce the desired result.
A workflow model is a container or template for the workflow that logically connects the workflow steps.
By default, it has a start and an end node (along with an optional participant step).
It can contain a variety of nodes as well as the transitions that connect them. The workflow nodes can receive any type of input from the author and process it using Java code or ECMA scripts.
Workflow payload is a term that refers to a resource that the workflow will use to carry out its tasks.
Q. What is RESTful?
REST (Representational State Transfer) is an architectural style and communication strategy that is frequently utilised in the creation of web services. It uses a client-server communications protocol that is stateless and cacheable. HTTP requests are used by RESTful apps to post, read, and wipe out data. Uniform interface, stateless, cacheable, client-server, layered system, and code on demand are the six architectural constraints of REST.
Q. What are the advantages of utilising OSGi (Open Service Gateway Initiative)?
- OSGi (Open Service Gateway Initiative) is a Java platform for creating and deploying modular software. The following are the key advantages of utilising OSGI:
- Applications are more adaptive to changing requirements, more portable, and easier to re-engineer.
- The framework delivers the Spring Framework’s declarative assembly and simplified unit testing in a standardised version that is given as part of the application server runtime rather than as a third-party library installed as part of the application
- The framework is compatible with the Java EE programming model, allowing you to deploy a web application as a collection of versioned OSGi bundles with a dynamic lifespan.
- It simplifies and standardizes third-party library integration by allowing administrators to manage application bundle dependencies and versions.
- Enterprise applications made out of several, versioned bundles with dynamic lifecycles benefit from the framework’s separation.
- It comes with a built-in bundle repository that can store common and versioned bundles that are shared among several applications, preventing each application from deploying its own copy of each common library.
- External bundle repositories are accessible to OSGi apps.
At the module level, the framework encourages service-oriented design. - It makes the components straightforward to handle since the components can be added, deleted, updated, launched, and terminated at run time.
- It improves the system’s performance because components of the application that aren’t in use don’t have to be loaded into memory.
For more Click Here