WebSphere Portal FAQ - Part II


Here goes the second list of common FAQ's asked during portal interviews.

Q1.What is Dynacache?

Dynacache is disturbed map used to store and retrieve objects from memory. IBM provides API to create, store retrieve the objects.

Q2. Different modes available in Websphere Portal?

A part for standard modes ( view, edit, help) it provides edit_ defaults and configure mode.

Q3. What can you do with XML access scripts?

XML Access is used to transfer read more.

Q4.What are different types of credential vault segments?

Vault segment is the partition of the vault. There are two types of segments
  • Administration managed
  • User managed
Q5. How do I suppress the min and max buttons in the JSR 168 portlets?

You cannot do this in the portlet because these buttons are provided by the portal. Thus, your portal needs to not render these buttons for a specific portlet. In WebSphere Portal, you can do this by creating a special skin.

Q6. Our Java classes in our WAR need to reference some classes outside of the WAR. What is the supported way to do it on WebSphere Portal 5.1?

You can put the jar file in the PortalServer/shared/app directory to make them accessible to all portlet applications.

Q7. We have a portal application that is heavily dependent on the Portal Messaging feature to exchange data between portlets. We need to make this application available to non-WebSphere customers also. But, JSR 168 doesn't seem to have any support for inter-portlet messaging. Is there a time-frame when JSR 168 will support messaging? What alternative approach can we take?

The only standard way to exchange data is either via the portlet session applications scope for portlets within one portlet application, or via an EJB across applications. Inter-portlet communication will be addressed in version 2.0 of the Portlet Specification,which was submitted to the JCP as JSR 286.

Q8.What is Web Content Management System (WCMS)?

Web Content management system is a software system that helps build and manage a Web entities (html pages, documents etc.) Once setup is complete it provides templates for authoring, workflow management to the content. It is easy to use for non technical user.

Q9.What are work flows in WCM?

A workflow is a sequence of steps that are followed in creating approved content. In WebSphere portal, A workflow contains one or more stages. Every stage contains one or more actions, the following are different Workflow actions available in WebSphere Publish, Expire, Email, Scheduled Move, Custom Actions.

Q10. What are Authoring and Presentation Templates?

Authoring Template - This template is defined using authoring portlet, where we define the access information, form properties and default content. It does not contain any information for presentation and The elements in this form are linked to presentation template.

Presentation Template - This allow to change the look of a page without having to update what is being displayed on a page. It will allow to define Page style, Page layout and map element to the authoring templates.

Q11.What is Credential Vault?

In WebSphere portal, credential vault is the repository to store the user id and password. We can use credential vault service API to store and retrieve them pro grammatically.

Q12. What are public render parameters?

Public render parameters are used to share the information(mostly a string) between different portlets.

Q13.What is Web DAV? What are theme components stored in it ?

Web DAV (web based distributed authoring and versioning) is nothing but a extra set of methods using HTTP for managing documents. In WebSphere portal all the static components of the theme are stored in Web DAV. This is one of the options of storing the theme. We can also load theme as .war file.

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