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Oracle 1Z0-858 Exam Syllabus Topics:

Oracle Java Enterprise Edition 5 Web Component Developer Certified Professional Sample Questions:

1. 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) ${funct:calcAge(client.birthDate) < 25}
B) ${calcAge(client.birthDate) < 25}
C) ${funct:age(client.birthDate) < 25}
D) ${calcAge[client.birthDate] < 25}
E) ${funct:calcAge[client.birthDate] < 25}
F) ${funct:age[client.birthDate] < 25}

2. You have a new IT manager that has mandated that all JSPs must be refactored to include no scritplet code. The IT manager has asked you to enforce this. Which deployment descriptor element will satisfy this constraint?

A) <jsp-property-group> <url-pattern>*.jsp</url-pattern> <permit-scripting>false</permit-scripting> </jsp-property-group>
B) <jsp-config> <url-pattern>*.jsp</url-pattern> <scripting-invalid>true</scripting-invalid> </jsp-config>
C) <jsp-property-group> <url-pattern>*.jsp</url-pattern> <scripting-invalid>true</scripting-invalid> </jsp-property-group>
D) <jsp-config> <url-pattern>*.jsp</url-pattern> <permit-scripting>false</permit-scripting> </jsp-config>

3. Given the definition of MyObject and that an instance of MyObject is bound as a session attribute:
8.package com.example;
9.public class MyObject implements
10.
javax.servlet.http.HttpSessionBindingListener {
11.
// class body code here
12.
}
Which is true?

A) The unbound method of the MyObject instance is called when the session to which it is bound times out.
B) The valueUnbound method of the MyObject instance is called when the session to which it is bound times out.
C) Only a single instance of MyObject may exist within a session.
D) The com.example.MyObject must be declared as a servlet event listener in the web application deployment descriptor.

4. A developer wants to make a name attribute available to all servlets associated with a particular user, across multiple requests from that user, from the same browser instance.
Which two provide this capability from within a tag handler? (Choose two.)

A) pageContext.setAttribute("name", theValue, PageContext.PAGE_SCOPE);
B) pageContext.getSession().setAttribute("name", theValue);
C) pageContext.setAttribute("name", theValue);
D) pageContext.setAttribute("name", getSession());
E) pageContext.getRequest().setAttribute("name", theValue);
F) pageContext.setAttribute("name", theValue, PageContext.SESSION_SCOPE);

5. Which three are true about the HttpServletRequestWrapper class? (Choose three.)

A) The HttpServletRequestWrapper can be used to extend the functionality of a servlet request.
B) An HttpServletRequestWrapper may be used only by a class implementing the javax.servlet.Filter interface.
C) The HttpServletRequestWrapper is an example of the Decorator pattern.
D) An HttpServletRequestWrapper may modify the header of a request within an object implementing the javax.servlet.Filter interface.
E) An HttpServletRequestWrapper CANNOT be used on the request passed to the RequestDispatcher.include method.
F) A subclass of HttpServletRequestWrapper CANNOT modify the behavior of the getReader method.

Solutions: