1Z1-899試験無料問題集（132題）「Oracle Java EE 6 Web Component Developer Certified Expert 認定」

出題：1

You are implementing a model component. You realize that an IOException might arise if you lose connection to the database. How should you address this?

A. Provide an error handler page, and use the page directive in the invoking ISP to redirect to that page if the error arises.

B. Implement multipathing to provide redundant connectivity to the database, thereby avoiding that risk of connection failure.

C. Use the JSTL <c:catch> tag to take control if the exception arises.

D. Surround the problem area with a try/catch block and implement appropriate recovery or fallback behavior.

正解：C 解答を投票する

出題：2

You are creating a new ISP page and you need to execute some code that acts when the- page is first executed, but only once. Which three are possible mechanisms for performing this initialization code? (Choose three)

A. In the constructor of the JSP's Java code.

B. In a JSP declaration, which includes an initializer block.

C. In a JSP declaration, which includes a static initializer block.

D. In the jspInit method.

E. In the init method.

正解：B,C,D 解答を投票する

出題：3

Which of the following annotations relate to security in a servlet?
(i) @WebSecurity
(ii) @RolesAllowed
(iii) @WebConstraint
(iv) @HttpConstraint
(v) @Servletsecurity

A. (i) and (iii)

B. (iv) and (v)

C. (iii) and (v)

D. (ii) and (iv)

E. (i) only

正解：B 解答を投票する

出題：4

Given the java code snippet in contextInitialized method of a ServletContextListner:
ServletRegistration.Dynamic sr = (ServletRegistration.Dynamic)sc.addServlet ("myServlet", myServletClass); sr.addMapping("/abc"); sr.setServletSecurityElement(servletSecurityElement); sr.addMapping("/def"); Which statement is true?

A. Both "/abc" and "/def" are mapped to "myservlet". The servletSecurityElementy applies to "/abc", but the behavior for "/def" is not specified.

B. Both "/abc" and "/def" are mapped to "myservlet". The servletSecurityElementy applies to "/abc".

C. Both "/abc" and "/def" are mapped to "myservlet". The servletSecurityElementy applies to "/def".

D. Both "/abc" and "/def" are mapped to "myservlet". The servletSecurityElementy applies to both "/abc" and "/def".

E. "/abc" is mapped to "myservlet". The servletSecurityElementy applies to both "/abc" and "/def".

正解：D 解答を投票する

出題：5

For manageability purposes, you have been told to add a "count" instance variable to a critical JSP Document so that a JMX MBean can track how frequent this JSP is being invoked.
Which JSP code snippet must you use to declare this instance variable in the JSP Document?

A. <jsp:scriptlet.declaration>int count = 0;<jsp:scriptlet.declaration>

B. <jsp:declaration>int count = 0;<jsp:declaration>

C. <%! int count = 0; %>

D. <jsp:declaration.instance>int count = 0;<jsp:declaration.instance>

正解：B 解答を投票する

出題：6

Given:
11. <%
12. request.setAttribute ("vals", new String[] {"1", "2", "3", "4"});
13. request.setAttribute ("index", "2");
14. %>
15. <% - - insert code here - - %>
Which three EL expressions, inserted at line 15, are valid and evaluate to "3"? (Choose three)

A. ${vals [vals[index-1]] }

B. ${vals.index}

C. ${vals.2}

D. ${vals ["2"] }

E. ${vals} [index]

F. ${vals[index] }

G. ${vals. (vals.index) }

正解：A,D,F 解答を投票する

1Z1-899試験無料問題集「Oracle Java EE 6 Web Component Developer Certified Expert 認定」