1Z0-858 Online Practice Questions and Answers

A developer has created a special servlet that is responsible for generating XML content that is sent to a data warehousing subsystem. This subsystem uses HTTP to request these large data files, which are compressed by the servlet to save internal network bandwidth. The developer has received a request from management to create several more of these data warehousing servlets. The developer is about to copy and paste the compression code into each new servlet. Which design pattern can consolidate this compression code to be used by all of the data warehousing servlets?

A. Facade

B. View Helper

C. Transfer Object

D. Intercepting Filter

E. Composite Facade

A session-scoped attribute is stored by a servlet, and then that servlet forwards to a JSP page. Which three jsp:useBean attributes must be used to access this attribute in the JSP page? (Choose three.)

A. id

B. name

C. bean

D. type

E. scope

F. beanName

Given an HttpServletRequest request and HttpServletResponse response, which sets a cookie "username" with the value "joe" in a servlet?

A. request.addCookie("username", "joe")

B. request.setCookie("username", "joe")

C. response.addCookie("username", "joe")

D. request.addHeader(new Cookie("username", "joe"))

E. request.addCookie(new Cookie("username", "joe"))

F. response.addCookie(new Cookie("username", "joe"))

G. response.addHeader(new Cookie("username", "joe"))

You want to create a valid directory structure for your Java EE web application, and your application uses tag files and a JAR file. Which three must be located directly in your WEB-INF directory (NOT in a subdirectory of WEB-INF)? (Choose three.)

A. The JAR file

B. A directory called lib

C. A directory called tags

D. A directory called TLDs

E. A directory called classes

F. A directory called META-INF

hich two are true regarding a web application class loader? (Choose two.)

A. A web application may override the web container's implementation classes.

B. A web application running in a J2EE product may override classes in the javax.* namespace.

C. A web application class loader may NOT override any classes in the java.* and javax.* namespaces.

D. Resources in the WAR class directory or in any of the JAR files within the library directory may be accessed using the J2SE semantics of getResource.

E. Resources in the WAR class directory or in any of the JAR files within the library directory CANNOT be accessed using the J2SE semantics of getResource.

Click the Exhibit button. Given the web application deployment descriptor elements:

11.

12.

ParamAdder

13.

com.example.ParamAdder

14.

...

31.

32.

ParamAdder

33.

Destination

34.

...

55.

56.

Destination

57.

/dest/Destination

58.

What is the result of a client request of the Source servlet with no query string?

A. The output "filterAdded = null" is written to the response stream.

B. The output "filterAdded = addedByFilter" is written to the response stream.

C. An exception is thrown at runtime within the service method of the Source servlet.

D. An exception is thrown at runtime within the service method of the Destination servlet.

Given:

11.

12.

catalog

13.

/catalogTemplate.jsp

14.

10

15.

Which two are true? (Choose two.)

A. Line 13 is not valid for a servlet declaration.

B. Line 14 is not valid for a servlet declaration.

C. One instance of the servlet will be loaded at startup.

D. Ten instances of the servlet will be loaded at startup.

E. The servlet will be referenced by the name catalog in mappings.

Given this fragment from a Java EE deployment descriptor:

341.

342.

java.lang.Throwable 343. /mainError.jsp 344.

345.

346.

java.lang.ClassCastException 347. /castError.jsp

348.

If the web application associated with the fragment above throws a ClassCastException.

Which statement is true?

A. The deployment descriptor is invalid.

B. The container invokes mainError.jsp.

C. The container invokes castError.jsp.

D. Neither mainError.jsp nor castError.jsp is invoked.

Which element of a web application deployment descriptor element is required?

A.

B.

C.

D.

E.

A web browser need NOT always perform a complete request for a particular page that it suspects might NOT have changed. The HTTP specification provides a mechanism for the browser to retrieve only a partial response from the web server; this response includes information, such as the Last- Modified date but NOT the body of the page. Which HTTP method will the browser use to retrieve such a partial response?

A. GET

B. ASK

C. SEND

D. HEAD

E. TRACE

F. OPTIONS