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Oracle Java Technology 1Z0-858

1Z0-858

Exam Code: 1Z0-858

Exam Name: Java Enterprise Edition 5 Web Component Developer Certified Professional Exam

Updated: Aug 31, 2025

Q & A: 276 Questions and Answers

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

1. In your web application, you need to execute a block of code whenever the session object is first created. Which design will accomplish this goal?

A) Create an HttpSessionActivationListener class and implement the sessionCreated method with that block of code.
B) Create an HttpSessionListener class and implement the sessionInitialized method with that block of code.
C) Create an HttpSessionListener class and implement the sessionCreated method with that block of code.
D) Create a Filter class, call the getSession(false) method, and if the result was null, then execute that block of code.
E) Create a Filter class, call the getSession(true) method, and if the result was NOT null, then execute that block of code.


2. To take advantage of the capabilities of modern browsers that use web standards, such as XHTML and CSS, your web application is being converted from simple JSP pages to JSP Document format. However, one of your JSPs, /scripts/screenFunctions.jsp, generates a JavaScript file. This file is included in several web forms to create screen-specific validation functions and are included in these pages with the following statement:
10.<head>
11.<script src='/scripts/screenFunctions.jsp'
12.language='javascript'
13.type='application/javascript'> </script>
14.</head>
15.<!-- body of the web form -->
Which JSP code snippet declares that this JSP Document is a JavaScript file?

A) <jsp:document contentType='application/javascript' />
B) No declaration is needed because the web form XHTML page already declares the MIME type of the /scripts/screenFunctions.jsp file in the <script> tag.
C) <jsp:page contentType='application/javascript' />
D) <%@ page contentType='application/javascript' %>
E) <jsp:directive.page contentType='application/javascript' />


3. Click the Exhibit button. Given:
10.
<form action='create_product.jsp'>
11.
Product Name: <input type='text' name='prodName'/><br/>
12.
Product Price: <input type='text' name='prodPrice'/><br/>
13.
</form>
For a given product instance, which three jsp:setProperty attributes must be used to initialize its properties from the HTML form? (Choose three.)

A) param
B) property
C) reqParam
D) type
E) name
F) attribute
G) id


4. Which two are true about the JSTL core iteration custom tags? (Choose two.)

A) When looping over integers (for example begin='1' end='10'), a loop status object may not be used in the tag body.
B) When looping over collections, a loop status object may be used in the tag body.
C) It may iterate over a map, but only the key of the mapping may be used in the tag body.
D) It may iterate over arrays, collections, maps, and strings.
E) The body of the tag may contain EL code, but not scripting code.


5. You are building a Front Controller using a JSP page and you need to determine if the user's session has NOT been created yet and perform some special processing for this case. Which scriptlet code snippet will perform this test?

A) <% if ( request.getSession(false) == null ) {
// special processing
} %>
B) <% if ( requestObject.getSession(false) == null ) {
// special processing
} %>
C) <% if ( request.getHttpSession(false) == null ) {
// special processing
} %>
D) <% if ( requestObject.getHttpSession(false) == null ) {
// special processing
} %>


Solutions:

Question # 1
Answer: C
Question # 2
Answer: E
Question # 3
Answer: A,B,E
Question # 4
Answer: B,D
Question # 5
Answer: A

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