Deck 27: Javaserver Faces Web Apps: Part 2

Question 1

The ________ annotation allows you to inject a DataSource into a managed bean.

A) @Resource.
B) @DataSource.
C) @Database.
D) None of the above.

Answer 1

A

Question 2

Ajax separates the user interaction portion of an application from its server interaction, enabling both to proceed ________.

A) synchronously.
B) asynchronously in parallel.
C) without any interaction whatsoever.
D) None of the above.

Answer 2

B

Question 3

The ________ element displays a collection's data in tabular format.

A) h:table.
B) h:collection.
C) h:dataTable.
D) None of the above.

Answer 3

C

Question 4

The ________ enables the asynchronous exchanges with the web server that make Ajax applications so responsive.

A) HttpRequestObject.
B) XMLHttpRequest.
C) XMLHttpRequestObject.
D) None of the above.

Question 5

Which of the following is true

A) You should maintain a separate database connection for each client request.
B) You should maintain a connection pool that allows the server to manage a limited number of database connections and share them among requests.
C) You should never connect to databases from web apps.
D) None of the above.

Question 6

The f:ajax element's ________ attribute specifies a space-separated list of element ids-the values of these elements are submitted as part of the Ajax request.

A) execute.
B) render.
C) send.
D) display.

Question 7

The f:ajax element's ________ attribute specifies a space-separated list of element ids for the elements that should be updated via partial page updates.

A) execute.
B) render.
C) send.
D) display.