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SUN 310-083 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Web Container Model | 14% | - Request dispatching - Container architecture and responsibilities - Servlet context attributes |
| Topic 2: JSP Standard Actions and Custom Tags | 13% | - Simple and Classic tag handlers - Tag Library Descriptor - Standard actions |
| Topic 3: JSP Technology Model | 13% | - JSP lifecycle and translation - JSP elements and syntax - Implicit objects |
| Topic 4: JSP Expression Language | 10% | - Implicit variables and scope resolution - EL syntax and operators - Functions and reserved words |
| Topic 5: Web Application Structure and Deployment | 12% | - Deployment descriptor (web.xml) - Context parameters and initialization - WAR file structure |
| Topic 6: Web Application Security | 11% | - Transport security - Declarative and programmatic security - Authentication and authorization |
| Topic 7: Session Management | 12% | - URL rewriting, cookies, SSL - Session attributes and listeners - Session lifecycle and tracking |
| Topic 8: Servlet Technology Model | 15% | - Servlet lifecycle - Servlet interface and methods - Request and response handling |
SUN Sun Certified Web Component Developer for J2EE 5 Sample Questions:
Given the JSP code:
< % request.setAttribute("foo", "bar"); %>
and the Classic tag handler code:
5 . public int doStartTag() throws JspException {
6 . // insert code here
7 . // return int
8 . }
Assume there are no other "foo" attributes in the web application.
Which invocation on the pageContext object, inserted at line 6, assigns "bar" to the variable x?
- A. String x = (String)
pageContext.getRequest().getAttribute("foo"); - B. String x = (String) pageContext.getAttribute("foo");
- C. String x = (String) pageContext.getRequestScope("foo");
- D. It is NOT possible to access the pageContext object from within doStartTag.
- E. String x = (String) pageContext.getAttribute("foo",
PageContext.ANY_SCOPE);
Correct Answer: A 🗳️
Click the Exhibit button.
The h:highlight tag renders its body, highlighting an arbitrary number of words, each of which is passed as an attribute (word1, word2, ...). For example, a JSP page can invoke the h:highlight tag as follows:
1 1. <h:highlight color="yellow" word1="high" word2="low">
1 2. high medium low
1 3. </h:highlight>
Given that HighlightTag extends SimpleTagSupport, which three steps are necessary to implement the tag handler for the highlight tag? (Choose three).
- A. add a getter and setter for the color attribute
- B. implement the DynamicAttributes interface
- C. add a doStartTag method
- D. add a getter and setter for the word1 and word2 attributes
- E. create and implement a TagExtraInfo class
- F. add a doTag method
Correct Answer: A,B,F 🗳️
Which two about WAR files are true? (Choose two.)
- A. WAR files must be created by using archive tools designed specifically for that purpose.
- B. WAR files must contain the web application deployment descriptor.
- C. WAR files must be located in the web application library directory.
- D. The web container must serve the content of any META-INF directory located in a WAR file.
- E. The web container must allow access to resources in JARs in the web application library directory.
Correct Answer: B,E 🗳️
You are building a dating web site. The client's date of birth is collected along with lots of other information. You have created an EL function with the signature:
calcAge(java.util.Date):int and it is assigned to the name, age, in the namespace, funct. In one of your JSPs you need to print a special message to clients who are younger than 25.
Which EL code snippet will return true for this condition?
- A. ${calcAge(client.birthDate) < 25}
- B. ${funct:age(client.birthDate) < 25}
- C. ${funct:calcAge[client.birthDate] < 25}
- D. ${funct:calcAge(client.birthDate) < 25}
- E. ${calcAge[client.birthDate] < 25}
- F. ${funct:age[client.birthDate] < 25}
Correct Answer: B 🗳️
Given:
1 . package com.example;
2 .
3 . public abstract class AbstractItem {
4 . private String name;
...
13. }
Assume a concrete class com.example.ConcreteItem extends com.example.AbstractItem.
A servlet sets a session-scoped attribute called "item" that is an instance of com.example.ConcreteItem and then forwards to a JSP page.
Which two are valid standard action invocations that expose a scripting variable to the JSP page? (Choose two.)
- A. <jsp:useBean id="com.example.ConcreteItem"
scope="session" /> - B. <jsp:useBean id="item" class="com.example.ConcreteItem"
scope="session" /> - C. <jsp:useBean id="item" type="com.example.ConcreteItem"
scope="session" /> - D. <jsp:useBean id="item" type="com.example.ConcreteItem"
class="com.example.AbstractItem"
scope="session" />
Correct Answer: B,C 🗳️
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