Oracle Java Enterprise Edition 5 Web Component Developer Certified Professional : 1Z0-858 Exam Questions

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Oracle 1Z0-858 Exam Syllabus Topics:

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

1. In which three directories, relative to a web application's root, may a tag library descriptor file reside when deployed directly into a web application? (Choose three.)

A) /WEB-INF/resources
B) /META-INF
C) /META-INF/resources
D) /WEB-INF/tlds
E) /META-INF/tlds
F) /WEB-INF

2. DRAG DROP
Click the Task button.
Given a servlet mapped to /control, place the correct URI segment returned as a String on the corresponding HttpServletRequest method call for the URI: /myapp/control/processorder.

3. You are creating a library of custom tags that mimic the HTML form tags. When the user submits a form that fails validation, the JSP form is forwarded back to the user. The <t:textField> tag must support the ability to re-populate the form field with the request parameters from the user's last request. For example, if the user entered "Samantha" in the text field called firstName, then the form is re-populated like this:
<input type='text' name='firstName' value='Samantha' />
Which tag handler method will accomplish this goal?

A) public void doTag() throws JspException {
ServletRequet request = pageContext.getRequest();
String value = request.getParameter(this.name);
if ( value == null ) value = "";
JspWriter out = pageContext.getOut();
try {
out.write(String.format(INPUT, this.name, value));
} (Exception e) { throw new JspException(e); }
}
private static String INPUT
= "<input type='text' name='%s' value='%s' />";
B) public int doStartTag() throws JspException {
JspContext ctx = getJspContext();
String value = ctx.getParameter(this.name);
if ( value == null ) value = "";
JspWriter out = pageContext.getOut();
try {
out.write(String.format(INPUT, this.name, value));
} (Exception e) { throw new JspException(e); }
return SKIP_BODY;
}
private static String INPUT
= "<input type='text' name='%s' value='%s' />";
C) public void doTag() throws JspException {
JspContext ctx = getJspContext();
String value = ctx.getParameter(this.name);
if ( value == null ) value = "";
JspWriter out = pageContext.getOut();
try {
out.write(String.format(INPUT, this.name, value));
} (Exception e) { throw new JspException(e); }
}
private static String INPUT
= "<input type='text' name='%s' value='%s' />";
D) public int doStartTag() throws JspException {
ServletRequet request = pageContext.getRequest();
String value = request.getParameter(this.name);
if ( value == null ) value = "";
JspWriter out = pageContext.getOut();
try {
out.write(String.format(INPUT, this.name, value));
} (Exception e) { throw new JspException(e); }
return SKIP_BODY;
}
private static String INPUT
= "<input type='text' name='%s' value='%s' />";

4. 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.remove(attr); }
C) for ( String attr : USE_CASE_ATTRS ) {
session.deleteAttribute(attr);
}
D) for ( String attr : USE_CASE_ATTRS ) {
session.removeAttribute(attr);
}
E) session.removeAll(USE_CASE_ATTRS);

5. What is true about Java EE authentication mechanisms?

A) To use Java EE FORM authentication, you must declare two HTML files in your deployment descriptor, and you must use a predefined action in the HTML file that handles your user's login.
B) If your deployment descriptor correctly declares an authentication type of BASIC, the container automatically requests a user name and password whenever a user starts a new session.
C) If you want your web application to support the widest possible array of browsers, and you want to perform authentication, the best choice of Java EE authentication mechanisms is DIGEST.
D) If your deployment descriptor correctly declares an authentication type of CLIENT_CERT, your users must have a certificate from an official source before they can use your application.

Solutions: