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Portal And Portlet Interview Questions and Answers

What is a Portlet? Explain its capabilities.

Portlets are UI components that are pluggable and are managed, displayed in a web portal. Markup code fragments are produced by the portlets which are aggregated into a portal page. A portlet resembles an application that is web based and is hosted in a portal. Email, discussion forums, news, blogs, weather reports are some of the examples of portlets.

What is Horizontal Portals?

These are the portals are of type general interest. Yahoo!,Lycos,AOL,Freeserve,Sympatico are examples of horizontal portals.

Explain the concepts and capabilities of Portal Structure Markup Language, PSML

PSML was created to allow abstraction and content structure within Jetspeed. It has two markups:

  • Registry markup: Describes the availability of resources to the Jetspeed engine. It supports multiple portlet registries.
  • Site markup: The availability of portlets are described by this markup, which is displayed for a given user.
Explain Portal architecture.

The core implementation of the portal is UI, hosted by a Portal server. The HTTP requests, HTML responses, and returning appropriate portal pages are handled by the Portal UI. Enterprise Web application also can be handled by the Portal Server.

The portal architecture has the following:

Automaton Server: This server performs the management of job scheduling and implementation of a portal. It accesses all remote crawlers and profile services retrieved and stored from a remote database.

Image Server: This server hosts images and other web page content used by web services and a portal. With this configuration, large static files are to be sent directly to the browser without portal server impacts.

Search Server: This server indexes and searches all the information, applications, communities, documents, web sites through portal.

Collaboration Server: Web content publication and management for portals and web applications are supported by this server. Its functionality can be accessed by a remote web services through Enterprise Web Development kit.

Content Server: Publication and management of web content for portals and web applications along with form based publishing, branding, templates, content expiration is allowed by this server.

Authentication Server: This server handles the portal authentication for users and remote services can be accessed through EDK.

Remote Servers: Web services written using the EDK are hosted by remote servers. The servers can be in different countries, on different platforms and domains.

What is Vertical Portals?

They provide a gateway to the information pertaining to a specific industry such as insurance, banking, finance, automobile, telecom etc.

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