Exam Name: Java Enterprise Edition 5 Web Component Developer Certified Professional Exam
Certification Provider: Oracle
Corresponding Certification: Java Technology
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Oracle 1Z0-858 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Session Management | 10% | - Session lifecycle - Session tracking mechanisms - Session attributes and scope |
| Topic 2: Design Patterns and Architecture | 8% | - Intercepting Filter, Front Controller - Service Locator, Business Delegate - MVC pattern |
| Topic 3: JSTL and Custom Tag Development | 12% | - JSTL core and formatting tags - Tag handler lifecycle - Tag files and descriptors |
| Topic 4: JSP Technology Model | 13% | - Implicit objects - JSP lifecycle - Elements and syntax |
| Topic 5: Web Application Security | 12% | - Authorization and roles - Authentication methods - Data protection and transport security |
| Topic 6: Web Application Structure and Deployment | 10% | - WAR file structure - Annotations for configuration - Deployment descriptor (web.xml) |
| Topic 7: Expression Language (EL) and Standard Actions | 10% | - Accessing JavaBeans and collections - EL syntax and operators - Standard JSP actions |
| Topic 8: Web Container Model | 10% | - Filters and interceptors - Container services - Event listeners |
| Topic 9: Servlet Technology Model | 15% | - Servlet configuration and initialization - Servlet lifecycle - Request and response handling |
Oracle Java Enterprise Edition 5 Web Component Developer Certified Professional Sample Questions:
Given an HttpServletRequest request and an HttpServletResponse response:
41.
HttpSession session = null;
42.
// insert code here
43.
if(session == null) {
44.
// do something if session does not exist
45.
} else {
46.
// do something if session exists
47.
}
To implement the design intent, which statement must be inserted at line 42?
- A. session = response.getSession();
- B. session = request.getSession();
- C. session = request.getSession(true);
- D. session = request.getSession(false);
- E. session = request.getSession("jsessionid");
One of the use cases in your web application uses many session-scoped attributes. At the end of the use case, you want to clear out this set of attributes from the session object. Assume that this static variable holds this set of attribute names:
201.
private static final Set<String> USE_CASE_ATTRS;
202.
static {
203.
USE_CASE_ATTRS.add("customerOID");
204.
USE_CASE_ATTRS.add("custMgrBean");
205.
USE_CASE_ATTRS.add("orderOID");
206.
USE_CASE_ATTRS.add("orderMgrBean");
207.
}
Which code snippet deletes these attributes from the session object?
- A. session.deleteAllAttributes(USE_CASE_ATTRS);
- B. for ( String attr : USE_CASE_ATTRS ) {
session.deleteAttribute(attr);
} - C. session.removeAll(USE_CASE_ATTRS);
- D. for ( String attr : USE_CASE_ATTRS ) {
session.remove(attr);
} - E. for ( String attr : USE_CASE_ATTRS ) {
session.removeAttribute(attr);
}
Given:
6.<myTag:foo bar='42'>
7.<%="processing" %>
8.</myTag:foo>
and a custom tag handler for foo which extends TagSupport.
Which two are true about the tag handler referenced by foo? (Choose two.)
- A. The SKIP_PAGE constant is a valid return value for the doStartTag method.
- B. The doStartTag method is called once.
- C. The EVAL_PAGE constant is a valid return value for the doEndTag method.
- D. The doAfterBody method is NOT called.
- E. The EVAL_BODY_BUFFERED constant is a valid return value for the doStartTag method.
Which two are true about authentication? (Choose two.)
- A. Form-based logins should NOT be used with HTTPS.
- B. J2EE compliant web containers are NOT required to support the HTTPS protocol.
- C. Web containers are required to support unauthenticated access to unprotected web resources.
- D. Form-based logins should NOT be used when sessions are maintained by cookies or SSL session information.
- E. When using Basic Authentication the target server is NOT authenticated.
Given a web application in which the request parameter productID contains a product identifier. Which two EL expressions evaluate the value of the productID? (Choose two.)
- A. ${pageContext.request.productID}
- B. ${paramValues.productID[0]}
- C. ${paramValues.productID}
- D. ${params.productID[1]}
- E. ${param.productID}
- F. ${params.productID}
- G. ${productID}
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