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SUN 310-083 Exam Syllabus Topics:

SUN Sun Certified Web Component Developer for J2EE 5 Sample Questions:

1. Given:
1 . <% int[] nums = {42,420,4200};
2 . request.setAttribute("foo", nums); %>
3 . ${5 + 3 lt 6}
4 . ${requestScope['foo'][0] ne 10 div 0}
5 . ${10 div 0}
What is the result?

A) true true
B) false true Infinity
C) An exception is thrown.
D) true true Infinity
E) false true 0
F) false true
G) Compilation or translation fails.

2. Given an EL function declared with:
1 1. <function>
1 2. <name>spin</name>
1 3. <function-class>com.example.Spinner</function-class>
1 4. <function-signature>
1 5. java.lang.String spinIt()
1 6. </function-signature>
1 7. </function>
Which two are true? (Choose two.)

A) The function method must have the signature:
public static String spinIt().
B) The function class must be named Spinner, and must be in the package com.example.
C) The method must be mapped to the logical name "spin" in the web.xml file.
D) The function method must have the signature:
public String spinIt().
E) The function method must have the signature
public static String spin().
F) The function method must have the signature:
public String spin().

3. Given a web application in which the cookie userName is expected to contain the name of the user. Which EL expression evaluates to that user name?

A) ${userName}
B) ${cookies.get('userName')}
C) ${cookies.userName[0]}
D) ${cookies.userName}[1]
E) ${cookie.userName}
F) ${cookie.user.name}

4. Given an EL function foo, in namespace func, that requires a long as a parameter and returns a Map, which two are valid invocations of function foo? (Choose two.)

A) ${func:foo("3").name}
B) ${foo:func(4)}
C) ${foo(5):func}
D) ${func(1)}
E) ${func:foo(2)}
F) ${func:foo("easy")}

5. You have built your own light-weight templating mechanism. Your servlets, which handle each request, dispatch the request to one of a small set of template JSP pages. Each template JSP controls the layout of the view by inserting the header, body, and footer elements into specific locations within the template page. The URLs for these three elements are stored in request-scoped variables called, headerURL, bodyURL, and footerURL, respectively. These attribute names are never used for other purposes. Which
JSP code snippet should be used in the template JSP to insert the JSP content for the body of the page?

A) <jsp:insert page='<%= bodyURL %>' />
B) <jsp:insert page='${bodyURL}' />
C) <jsp:include page='${bodyURL}' />
D) <jsp:insert file='${bodyURL}' />
E) <jsp:include file='${bodyURL}' />
F) <jsp:include page='<%= bodyURL %>' />

Solutions: