Websphere Portal FAQ - Part IV

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Some of my readers keep on asking me to share a list of FAQ's that are commonly asked during WebSphere Portal technical interviews. So I have compiled a list of some questions that you must know before you attempt any Portal technical interview round. This is not the final list of questions but definitely adds lot of value to your Portal knowledge.
FAQ
FAQ

Q.1. What is Portal?
Ans: Portal is a web based application that commonly provides read more.

Q.2. What are Portlets ?
Ans: Portlet is a java technology based web component that is managed by and run inside the portlet container, that processes requests and generate dynamic content read more.

Q.3. Why do we need a Portal Server?
Ans: Below are some of the key points that helps you understand why do we need portal server and why it is more preferable option over other technologies read more.

Q.4. What is missing in JSR-168 API?

Ans: some of the features that are still missing in JSR168 and those are likely to be included in JSR286 read more.

Q.5. What are the new features that were introduced as part of JSR-286 API?
Ans: JSR286 provides new features to the portal developers. Here are few of them read more.

Q.6. How Portlets are different from Servlets?

Ans: Essentially, Servlets provide content that normally takes up the whole page in a browser read more.

Q.7. What distinguishes a Portal from a Website?
Ans: A Portal is generally a vehicle by which to gain access to a multitude of 'services' read more.

Q.8. Explain Portal build and release process across environments?
Ans: the steps for Portal build and release process across the environments read more.

Q.9. Explain Portal build and deployment strategies?
Ans: Portal development is inherently a complex process. Unlike typical J2EE applications which produce a single EAR file portal development produces various kinds of artifacts read more.

Q.10. What is the difference between Portal Migration and Portal Upgrade?
Ans: WebSphere Portal Server migration does not upgrade the WebSphere Portal Server v5.1, but rather is a set of steps to recreate the environment onto read more.

Q.11. What are out-of-box portlets?
Ans: WebSphere Portal Server provides some out-of-box portlets that lets you convert all or part of an existing web page into a portlet. These portlets provide basic functionality, such as serving read more.

Q.12. What is the use of IFrame portlet?
Ans: IFrames are implemented in Portlets to include URLs that point to a complete HTML page. JSR 168 API supports implementation of IFrames in Portlets read more.

Q.13. How to do exception handling in JSF portlets?
Ans:Now a days everyone understands the need to have more pleasant error screen than a “Portlet is currently unavailable” displayed to user read more.

Q.14. Is it possible to provide anonymous access to default search center portlet?
Ans: By default in WebSphere Portal, Anonymous users cannot view the Search Center portlet embedded within the theme read more.

Q.15. What are the new features introduced in WebSphere Portal Server 8?

Ans: WebSphere Portal 8 was released by IBM some time back. Below are some of the useful links for those who have just started working on WebSphere Portal 8 read more.

Q.16. Difference between WebSphere and Web Logic servers?

Ans: Below are the key differences between the WebLogic and WebSphere application servers read more.

Q.17. Different mechanisms for sharing values across portlets?

Ans: Sharing values across portlets is one of the most common requirements while implementing portlet based applications read more.

Q.18. Is it possible to customize Portal login messages? If yes then how?
Ans: The error messages that get displayed when the user does an unsuccessful login can be customized via read more.

Q.19. Explain step by step for creating a Web Service using RAD IDE.

Ans: By using RAD you can create, deploy & test the web service. RAD internally contains WebSphere application server for deployment of application read more.

Q.20. Explain different types of WCM caching?
Ans: WCM (Web Content Management) can be used to create and manage Web Contents. WCM content can be rendered using one of the following ways based on the design requirement read more.

Q.21. How to get HttpServletRequest object in portlets?
Ans: The PortletRequest object is supposed to give you everything you need in portlets i.e. request parameters, attributes, etc read more.

Q.22. What are different types of Portlet Session scopes?
Ans: The storing of information in portlet session is defined in two scopes - APPLICATION and PORTLET SCOPE.

APPLICATION_SCOPE: All the objects in the session scope are available to all portlets, servlets, and JSPs of the same portlet application.

PORTLET_SCOPE: All the objects in the session scope are available to the portlet only during the requests for the same portlet window. The attributes persisted in this scope are not protected from other web components.

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