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310-084 SCWCD Braindump 
ExamSoon 310-084 Exams
SUN Sun Certified Web Component Developer for Java. EE 5 Upgrade
 
O rder : 310-084 Exam
Practice Exam: 310-084
Exam Number/Code: 310-084
Exam Name: Sun Certified Web Component Developer for Java. EE 5 Upgrade
Questions and Answers: 119 Q&As 
Free 310-084 Braindumps
  
  
Exam : SUN 310-084
Title : Sun Certified Web Component Developer for Java. EE 5 Upgrade
1. Your company has a corporate policy that prohibits storing a customer's credit card number in any corporate 
database. However, users have complained that they do NOT want to re-enter their credit card number for each 
transaction. Your management has decided to use client-side cookies to record the user's credit card number for 120 
days. Furthermore, they also want to protect this information during transit from the web browser to the web container; 
so the cookie must only be transmitted over HTTPS.
Which code snippet creates the "creditCard" cookie and adds it to the out going response to be stored on the user's 
web browser?
A. 10. Cookie c = new Cookie("creditCard", usersCard);
11. c.setSecure(true);
12. c.setAge(10368000);
13. response.addCookie(c);
B. 10. Cookie c = new Cookie("creditCard", usersCard);
11. c.setHttps(true);
12. c.setMaxAge(10368000);
13. response.setCookie(c);
C. 10. Cookie c = new Cookie("creditCard", usersCard);
11. c.setSecure(true);
12. c.setMaxAge(10368000);
13. response.addCookie(c);
D. 10. Cookie c = new Cookie("creditCard", usersCard);
11. c.setHttps(true);
12. c.setAge(10368000);
13. response.addCookie(c);
E. 10. Cookie c = new Cookie("creditCard", usersCard);
11. c.setSecure(true);
12. c.setAge(10368000);
13. response.setCookie(c);
Answer: C
2. Which two are valid values for the <transport-guarantee> element inside a <security-constraint> element of a web 
application deployment descriptor? (Choose two.)
 
 

 
  
  
 
A. NULL
B. SECURE
C. INTEGRAL
D. ENCRYPTED
E. CONFIDENTIAL
Answer: CD
3. c.setAge(10368000);
13. response.addCookie(c);
B. 10. Cookie c = new Cookie("creditCard", usersCard);
11. c.setHttps(true);
12. c.setMaxAge(10368000);
13. response.setCookie(c);
C. 10. Cookie c = new Cookie("creditCard", usersCard);
11. c.setSecure(true);
12. c.setMaxAge(10368000);
13. response.addCookie(c);
D. 10. Cookie c = new Cookie("creditCard", usersCard);
11. c.setHttps(true);
12. c.setAge(10368000);
13. response.addCookie(c);
E. 10. Cookie c = new Cookie("creditCard", usersCard);
11. c.setSecure(true);
12. c.setAge(10368000);
13. response.setCookie(c);
Answer: C
4. Given:
Which statement, at line 16, retrieves an InputStream for the file /WEB-INF/myresrc.bin? 
A. new InputStream("/WEB-INF/myresrc.bin"); 
B. ctx.getInputStream("/WEB-INF/myresrc.bin"); 
C. ctx.getResourceAsStream("/WEB-INF/myresrc.bin"); 
D. new InputStream(new URL("/WEB-INF/myresrc.bin")); 
E. getClass().getResourceAsStream("/WEB-INF/myresrc.bin"); 
Answer: C
5. Given a web application in which the request parameter productID contains a product identifier.
Which two EL expressions evaluate the value of the productID? (Choose two.)
A. ${productID}
B. ${param.productID}
C. ${params.productID}
D. ${params.productID[1]}
E. ${paramValues.productID}
F. ${paramValues.productID[0]}
G. ${pageContext.request.productID}
Answer: BF
6. Given a JSP page:
The tag handler for n:recurse extends SimpleTagSupport.
Assuming an n:recurse tag can either contain an empty body or another n:recurse tag, which strategy allows the tag 
handler for n:recurse to output the nesting depth of the deepest n:recurse tag?
A. It is impossible to determine the deepest nesting depth because it is impossible for tag handlers that extend 
SimpleTagSupport to communicate with their parent and child tags.
B. Create a private non-static attribute in the tag handler class called count of type int initialized to 0. Increment count 
 
 
 

 
 
  
in the doTag method. If the tag has a body, invoke the fragment for that body. Otherwise, output the value of count.
C. Start a counter at 1. Call getChildTags(). If it returns null, output the value of the counter. Otherwise, increment 
counter and continue from where getChildTags() is called. Skip processing of the body.
D. If the tag has a body, invoke the fragment for that body.Otherwise, start a counter at 1. Call getParent(). If it returns 
null, output the value of the counter Otherwise, increment the counter and continue from where getParent() is called.
Answer: D
7. Given an HttpSession session, a ServletRequest request, and a ServletContext context, which retrieves a URL 
to /WEB-INF/myconfig.xml within a web application? 
A. session.getResource("/WEB-INF/myconfig.xml") 
B. request.getResource("/WEB-INF/myconfig.xml") 
C. context.getResource("/WEB-INF/myconfig.xml") 
D. getClass().getResource("/WEB-INF/myconfig.xml") 
Answer: C
8. The sl:shoppingList and sl:item tags output a shopping list to the response and are used as follows:
The tag handler for sl:shoppingList is ShoppingListTag and the tag handler for sl:item is ItemSimpleTag.
ShoppingListTag extends BodyTagSupport and ItemSimpleTag extends SimpleTagSupport.
Which is true?
A. ItemSimpleTag can find the enclosing instance of ShoppingListTag by calling getParent() and casting the result to 
ShoppingListTag.
B. ShoppingListTag can find the child instances of ItemSimpleTag by calling super.getChildren() and casting each to 
an ItemSimpleTag.
C. It is impossible for ItemSimpleTag and ShoppingListTag to find each other in a tag hierarchy because one is a 
Simple tag and the other is a Classic tag.
D. ShoppingListTag can find the child instances of ItemSimpleTag by calling getChildren() on the PageContext and 
casting each to an ItemSimpleTag.
E. ItemSimpleTag can find the enclosing instance of ShoppingListTag by calling findAncestorWithClass() on the 
PageContext and casting the result to ShoppingListTag.
Answer: A
9. A developer is designing a multi-tier web application and discovers a need to log each incoming client request. 
Which two patterns, taken independently, provide a solution for this problem? (Choose two.)
A. Transfer Object
B. Service Locator
C. Front Controller
D. Intercepting Filter
E. Business Delegate
F. Model-View-Controller 
Answer: CD
10. Given the function invocation expression ${my:reverse("42")}, and that the function reverse is mapped into a Java 
method called reverse, which two are valid signatures for the Java method reverse? (Choose two.)
A. public int reverse(String val)
B. public String reverse(String val)
C. public static int reverse(String val)
D. public static String reverse(int val)
E. private static double reverse(double val)
F. public int reverse(String value, String name)
G. public static int reverse(int value, String name)
Answer: CD
11. Click the Exhibit button.
As a maintenance feature, you have created this servlet to allow you to upload and remove files on your web server. 
 
 
 

 
 
Unfortunately, while testing this servlet, you try to upload a file using an HTTP request and on this servlet, the web 
container returns a 404 status.
What is wrong with this servlet?
A. HTTP does NOT support file upload operations.
B. The servlet constructor must NOT have any parameters.
C. The servlet needs a service method to dispatch the requests to the helper methods.
D. The doPut and doDelete methods do NOT map to the proper HTTP methods.
Answer: B
12. Which three are true about the HttpServletRequestWrapper class? (Choose three.)
A. The HttpServletRequestWrapper is an example of the Decorator pattern.
B. The HttpServletRequestWrapper can be used to extend the functionality of a servlet request.
C. A subclass of HttpServletRequestWrapper CANNOT modify the behavior of the getReader method.
D. An HttpServletRequestWrapper may be used only by a class implementing the javax.servlet.Filter interface.
E. An HttpServletRequestWrapper CANNOT be used on the request passed to the RequestDispatcher.include 
method.
F. An HttpServletRequestWrapper may modify the header of a request within an object implementing the 
javax.servlet.Filter interface.
Answer: ABF
13. 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"))
Answer: F
14. c.setSecure(true);
12. c.setAge(10368000);
13. response.addCookie(c);
B. 10. Cookie c = new Cookie("creditCard", usersCard);
11. c.setHttps(true);
12. c.setMaxAge(10368000);
13. response.setCookie(c);
C. 10. Cookie c = new Cookie("creditCard", usersCard);
11. c.setSecure(true);
12. c.setMaxAge(10368000);
13. response.addCookie(c);
D. 10. Cookie c = new Cookie("creditCard", usersCard);
11. c.setHttps(true);
12. c.setAge(10368000);
13. response.addCookie(c);
E. 10. Cookie c = new Cookie("creditCard", usersCard);
11. c.setSecure(true);
12. c.setAge(10368000);
13. response.setCookie(c);
Answer: C
15. For a given ServletResponse response, which two retrieve an object for writing text data? (Choose two.)
A. response.getWriter()
 
 
 

 
 
B. response.getOutputStream()
C. response.getOutputWriter()
D. response.getWriter().getOutputStream()
E. response.getWriter(Writer.OUTPUT_TEXT)
Answer: AB
16. For an HttpServletResponse response, which two create a custom header? (Choose two.)
A. response.setHeader("X-MyHeader", "34"); 
B. response.addHeader("X-MyHeader", "34"); 
C. response.setHeader(new HttpHeader("X-MyHeader", "34")); 
D. response.addHeader(new HttpHeader("X-MyHeader", "34")); 
E. response.addHeader(new ServletHeader("X-MyHeader", "34")); 
F. response.setHeader(new ServletHeader("X-MyHeader", "34")); 
Answer: AB
17. response.addCookie(c);
B. 10. Cookie c = new Cookie("creditCard", usersCard);
11. c.setHttps(true);
12. c.setMaxAge(10368000);
13. response.setCookie(c);
C. 10. Cookie c = new Cookie("creditCard", usersCard);
11. c.setSecure(true);
12. c.setMaxAge(10368000);
13. response.addCookie(c);
D. 10. Cookie c = new Cookie("creditCard", usersCard);
11. c.setHttps(true);
12. c.setAge(10368000);
13. response.addCookie(c);
E. 10. Cookie c = new Cookie("creditCard", usersCard);
11. c.setSecure(true);
12. c.setAge(10368000);
13. response.setCookie(c);
Answer: C
18. You are creating a content management system (CMS) with a web application front-end. The JSP that displays a 
given document in the CMS has the following general structure:
The citation tag must store information in the document tag for the document tag to generate a reference section at 
the end of the generated web page.
The document tag handler follows the Classic tag model and the citation tag handler follows the Simple tag model. 
Furthermore, the citation tag could also be embedded in other custom tags that could have either the Classic or 
Simple tag handler model.
Which tag handler method allows the citation tag to access the document tag?
A. public void doTag() {
JspTag docTag = findAncestorWithClass(this, DocumentTag.class);
((DocumentTag)docTag).addCitation(this.docID);
}
B. public void doStartTag() {
JspTag docTag = findAncestorWithClass(this, DocumentTag.class);
((DocumentTag)docTag).addCitation(this.docID);
}
C. public void doTag() {
Tag docTag = findAncestor(this, DocumentTag.class);
((DocumentTag)docTag).addCitation(this.docID);
}
 
 
 
 

 
 
D. public void doStartTag() {
Tag docTag = findAncestor(this, DocumentTag.class);
((DocumentTag)docTag).addCitation(this.docID);
}
Answer: A
19. The tl:taskList and tl:task tags output a set of tasks to the response and are used as follows:
The tl:task tag supplies information about a single task while the tl:taskList tag does the final output. The tag handler 
for tl:taskList is TaskListTag. The tag handler for tl:task is TaskTag. Both tag handlers extend BodyTagSupport.
Which allows the tl:taskList tag to get the task names from its nested tl:task children?
A. It is impossible for a tag handler that extends BodyTagSupport to communicate with its parent and child tags.
B. In the TaskListTag.doStartTag method, call super.getChildTags() and iterate through the results. Cast each result 
to a TaskTag and call getName().
C. In the TaskListTag.doStartTag method, call getChildTags() on the PageContext and iterate through the results.
Cast each result to a TaskTag and call getName().
D. Create an addTaskName method in TaskListTag. Have the TaskListTag.doStartTag method, return 
BodyTag.EVAL_BODY_BUFFERED. In the TaskTag.doStartTag method, call super.getParent(), cast it to a 
TaskListTag, and call addTaskName().
E. Create an addTaskName method in TaskListTag. Have the TaskListTag.doStartTag method, return 
BodyTag.EVAL_BODY_BUFFERED. In the TaskTag.doStartTag method, call findAncestorWithClass() on the 
PageContext, passing TaskListTag as the class to find. Cast the result to TaskListTag and call addTaskName().
Answer: D
20. Given the relationship:
The tag handler MyTag extends SimpleTagSupport. At runtime, the doTag method throws a SkipPageException.
Which three events occur after the SkipPageException is thrown? (Choose three.)
A. Evaluation of page2.jsp stops.
B. Evaluation of page1.jsp stops.
C. The MyTag instance is NOT reused.
D. Evaluation of page2.jsp continues.
E. Evaluation of page1.jsp continues.
Answer: ACE
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310-083  Sun Certified Web Component Developer for J2EE 5  
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310-082  Sun Certified Web Component Developer for J2EE 1.4. Upgrade  
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