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IBM Developing Portlets and Web Applications with IBM Web Experience Factory 8.0 Sample Questions:

1. Which of the following best describes the Discardable Variable builder?

A) This builder can be used to mark a variable created by other builders as discardable so that its
value is not stored past the end of the request,
unless developers specify that it should be cached and for how long to cache it.
B) The Discardable Variable builder has been deprecated and should no longer be used.
C) This builder stores all variable data in browser cookies, with a specified expiration time after
which the browser discards the values.
D) This builder removes all unused variables from the web application to minimize the size of the
application. The variables no longer show up in the Web Application Design view in IBM Web Experience Factory Designer after applying this builder.

2. Ralph wants to use IBM Web Experience Factory to quickly make a new portlet based on a REST service call, so that it has an input page, a view page, and a details page. What should be his first step?

A) Put a call to the REST Service Call builder in an existing portlet.
B) Use a different approach. Web Experience Factory does not support REST services.
C) Create JSP pages for the different pages.
D) Use File / New / Web Experience Factory Model and select the REST-based View and Form.

3. Martin wants to see all WebApp artifacts in the Application Tree view, including those hidden by default. How can Martin see those hidden artifacts?

A) Hidden objects can only be seen by examining the deployed portlet WAR file system.
B) Hidden objects cannot be seen by developers in the current release of IBM Web Experience Factory.
C) Hidden objects can be enabled in the Web Experience Factory Preferences window.
D) There are no hidden objects created by Web Experience Factory. All builder-generated objects are always visible in Web Experience Factory Designer by default.

4. Jose is designing web services that will return very large record sets (in the 1000's). He is also designing an IBM Web Experience Factory application to consume them and plans to use Web Experience Factory's Paging features to paginate over the large record sets. How should paging be configured for the web services?

A) He should simply enable paging in the Data Column Modifier builder. Web Experience Factory automatically chunks the data from the backend web service into the app server memory.
B) He should consider using The Chunked Data Retriever builder, which allows you to specify a start index and fetch size before invoking a web service.
C) Jose should consider implementing a start index and fetch size parameter in his underlying web services that return large record sets. Then in Web Experience Factory he can implement the DataRetriever interface which enables the Paging Assistant builder to return "chunks" from the underlying service rather that marshalling the entire record set into the application server's memory.
D) He should use enable the Web Service Call to return a DataRetriever and then add a Paging Assistant builder and point to the variable created by the results of the web service call.

5. Which of the following are valid page and operation options in the Data Services User Interface builder?

A) Create Page, Update Page, and Details Page
B) List Page, List Filter, Details Page, and Update Page
C) Create Page, List Page, Update Page, and Delete Operation
D) All of the above

Solutions: