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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 creating a servlet that generates stock market graphs. You want to provide the web browser with precise information about the amount of data being sent in the response stream. Which two HttpServletResponse methods will you use to provide this information? (Choose two.)

A) response.setContentLength(numberOfBytes);
B) response.setLength(numberOfBytes);
C) response.setIntHeader("Content-Length", numberOfBytes);
D) response.setIntHeader("Length", numberOfBytes);
E) response.setHeader("Length", numberOfBytes);
F) response.setHeader("Content-Length", numberOfBytes);

2. A web component accesses a local EJB session bean with a component interface of com.example.Account with a home interface of com.example.AccountHome and a JNDI reference of ejb/Account. Which makes the local EJB component accessible to the web components in the web application deployment descriptor?

A) <env-ref>
<ejb-ref-name>ejb/Account</ejb-ref-name>
<ejb-ref-type>Session</ejb-ref-type>
<local-home>com.example.AccountHome</local-home>
<local>com.example.Account</local>
</env-ref>
B) <resource-ref>
<ejb-ref-name>ejb/Account</ejb-ref-name>
<ejb-ref-type>Session</ejb-ref-type>
<local-home>com.example.AccountHome</local-home>
<local>com.example.Account</local> </resource-ref>
C) <ejb-remote-ref>
<ejb-ref-name>ejb/Account</ejb-ref-name>
<ejb-ref-type>Session</ejb-ref-type>
<local-home>com.example.AccountHome</local-home>
<local>com.example.Account</local>
</ejb-remote-ref>
D) <ejb-local-ref>
<ejb-ref-name>ejb/Account</ejb-ref-name>
<ejb-ref-type>Session</ejb-ref-type>
<local-home>com.example.AccountHome</local-home>
<local>com.example.Account</local>
</ejb-local-ref>

3. 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.getAttribute("foo");
B) String x = (String) pageContext.getRequest().getAttribute("foo");
C) It is NOT possible to access the pageContext object from within doStartTag.
D) String x = (String) pageContext.getRequestScope("foo");
E) String x = (String) pageContext.getAttribute("foo", PageContext.ANY_SCOPE);

4. Servlet A receives a request that it forwards to servlet B within another web application in the same web container. Servlet A needs to share data with servlet B and that data must not be visible to other servlets in A's web application. In which object can the data that A shares with B be stored?

A) HttpServletRequest
B) HttpSession
C) ServletConfig
D) HttpServletResponse
E) ServletContext

5. Which activity supports the data integrity requirements of an application?

A) using an LDAP security realm
B) using forms-based authentication
C) using HTTPS as a protocol
D) using HTTP Basic authentication

Solutions: