Q: 121 Which three are valid
values for the body-content attribute of a tag directive in a tag file? (Choose
three.)
B. JSP
C. empty
D. dynamic
E. scriptless
F. tagdependent
Answer: C, E, F
Q: 122 The
Squeaky Bean company has decided to port their web application to a new J2EE
1.4 container. While reviewing the application, a developer realizes that in
multiple places within the current application, nearly duplicate code exists
that finds enterprise beans. Which pattern should be used to eliminate this
duplicate code?
B. Front Controller
C. Service Locator
D. Intercepting Filter
E. Business Delegate
F. Model-View-Controller
Answer: C
Q: 123 A developer is designing a web application that makes many fine-grained
remote data requests for each client request. During testing, the developer
discovers that the volume of remote requests significantly degrades performance
of the application. Which design pattern provides a solution for this problem?
B. Transfer Object
C. Service Locator
D. Dispatcher View
E. Business Delegate
F. Model-View-Controller
Answer: B
Q: 124 In an n-tier application,
which two invocations are typically remote, not local? (Choose two.)
B. Service Locator to JNDI
C. Controller to request object
D. Transfer Object to Entity Bean
E. Controller to Business Delegate
F. Business Delegate to Service Locator
Answer: B, D
Q: 125 A
developer has created a special servlet that is responsible for generating XML
content that is sent to a data warehousing subsystem. This subsystem uses HTTP
to request these large data files, which are compressed by the servlet to save
internal network bandwidth. The developer has received a request from
management to create several more of these data warehousing servlets. The
developer is about to copy and paste the compression code into each new
servlet. Which design pattern can consolidate this compression code to be used
by all of the data warehousing servlets?
B. View Helper
C. Transfer Object
D. Intercepting Filter
E. Composite Facade
Answer: D
Q: 126 A developer is designing the presentation tier for a web application
which requires a centralized request handling to complete common processing
required by each request. Which design pattern provides a solution to this
problem?
B. Front Controller
C. Service Activator
D. Intercepting Filter
E. Business Delegate
F. Data Access Object
Answer: B
Q: 127 You are designing an n-tier
Java EE application. You have already decided that some of your JSPs will need
to get data from a Customer entity bean. You are trying to decide whether to
use a Customer stub object or a Transfer Object. Which two statements are true?
(Choose two.)
B. The Transfer Object will decrease data staleness.
C. The stub will increase the logic necessary in the JSPs.
D. In both cases, the JSPs can use EL expressions to get data.
E. Only the Transfer Object will need to use a Business Delegate.
F. Using the stub approach allows you to design the application without using a Service Locator.
Answer: A, D
Q: 128 You have a
simple web application that has a single Front Controller servlet that
dispatches to JSPs to generate a variety of views. Several of these views
require further database processing to retrieve the necessary order object
using the orderID request parameter. To do this additional processing, you pass
the request first to a servlet that is mapped to the URL pattern
/WEB-INF/retreiveOrder.do in the deployment descriptor. This servlet takes two
request parameters, the orderID and the jspURL. It handles the database calls
to retrieve and build the complex order objects and then it dispatches to the
jspURL.
Which code snippet in the Front Controller servlet
dispatches the request to the order retrieval servlet?
= context.getRequestDispatcher("/WEB-INF/retreiveOrder.do"); view.forward(request, response);
B. request.setParameter("orderID", orderID); request.setParameter("jspURL", jspURL); Dispatcher view
= request.getDispatcher("/WEB-INF/retreiveOrder.do"); view.forwardRequest(request, response);
C. String T="/WEB-INF/retreiveOrder.do?orderID=%d&jspURL=%s"; String url = String.format(T, orderID, jspURL);
RequestDispatcher view
= context.getRequestDispatcher(url); view.forward(request, response);
D. String T="/WEB-INF/retreiveOrder.do?orderID=%d&jspURL=%s"; String url = String.format(T, orderID, jspURL);
Dispatcher view = context.getDispatcher(url); view.forwardRequest(request, response);
Answer: C
Q: 129 You have
built a web application that you license to small businesses. The webapp uses a
context parameter, called licenseExtension, which enables certain advanced
features based on your client's license package. When a client pays for a
specific service, you provide them with a license extension key that they
insert into the <context-param> of the deployment descriptor. Not every
client will have this context parameter so you need to create a context
listener to set up a default value in the licenseExtension parameter. Which
code snippet will accomplish this goal?
A. You cannot do this because context parameters CANNOT be altered programmatically.
B. String ext = context.getParameter('licenseExtension'); if ( ext == null ) { context.setParameter('licenseExtension', DEFAULT);
}
C. String ext = context.getAttribute('licenseExtension'); if ( ext == null ) { context.setAttribute('licenseExtension', DEFAULT);
}
D. String ext = context.getInitParameter('licenseExtension'); if ( ext == null ) { context.resetInitParameter('licenseExtension', DEFAULT);
}
E. String ext = context.getInitParameter('licenseExtension'); if ( ext == null ) { context.setInitParameter('licenseExtension', DEFAULT);
}
Answer: A
Q: 130 You have a
use case in your web application that adds several session-scoped attributes.
At the end of the use case, one of these objects, the manager attribute, is
removed and then it needs to decide which of the other session-scoped
attributes to remove.
How can this goal be accomplished?
B. The object of the manager attribute should implement the HttpSessionListener and it should call the removeAttribute method on the appropriate session attributes.
C. The object of the manager attribute should implement the HttpSessionBindingListener and it should call the deleteAttribute method on the appropriate session attributes.
D. The object of the manager attribute should implement the HttpSessionListener and it should call the deleteAttribute method on the appropriate session attributes.
Answer: A
Q: 131 You want
to create a filter for your web application and your filter will implement
javax.servlet.Filter.
Which two statements are true? (Choose two.)
B. Your filter class must also implement javax.servlet.FilterChain.
C. When your filter chains to the next filter, it should pass the same arguments it received in its doFilter method.
D. The method that your filter invokes on the object it received that implements javax.servlet.FilterChain can invoke either another filter or a servlet.
E. Your filter class must implement a doFilter method that takes, among other things, an HTTPServletRequest object and an HTTPServletResponse object.
Answer: A, D
Q: 132 Your web
site has many user-customizable features, for example font and color
preferences on web pages. Your IT department has already built a subsystem for
user preferences using Java SE's lang.util.prefs package APIs and you have been
ordered to reuse this subsystem in your web application. You need to create an
event listener that stores the user's Preference object when an HTTP session is
created. Also, note that user identification information is stored in an HTTP
cookie.
Which partial listener class can accomplish this goal?
MyPrefsFactory myFactory = (MyPrefsFactory) se.getServletContext().getAttribute("myPrefsFactory"); User user = getUserFromCookie(se);
myFactory.setThreadLocalUser(user); Preferences userPrefs = myFactory.userRoot(); se.getSession().setAttribute("prefs", userPrefs);
}
// more code here
}
B. public class UserPrefLoader implements SessionListener {
public void sessionCreated(SessionEvent se) {
MyPrefsFactory myFactory = (MyPrefsFactory) se.getContext().getAttribute("myPrefsFactory"); User user = getUserFromCookie(se);
myFactory.setThreadLocalUser(user); Preferences userPrefs = myFactory.userRoot(); se.getSession().addAttribute("prefs", userPrefs);
}
// more code here
}
C. public class UserPrefLoader implements HttpSessionListener { public void sessionInitialized(HttpSessionEvent se) {
MyPrefsFactory myFactory = (MyPrefsFactory) se.getServletContext().getAttribute("myPrefsFactory"); User user = getUserFromCookie(se);
myFactory.setThreadLocalUser(user); Preferences userPrefs = myFactory.userRoot();
se.getHttpSession().setAttribute("prefs", userPrefs);
}
// more code here
}
D. public class UserPrefLoader implements SessionListener { public void sessionInitialized(SessionEvent se) {
MyPrefsFactory myFactory = (MyPrefsFactory) se.getServletContext().getAttribute("myPrefsFactory"); User user = getUserFromCookie(se);
myFactory.setThreadLocalUser(user); Preferences userPrefs = myFactory.userRoot(); se.getSession().addAttribute("prefs", userPrefs);
}
// more code here
}
Answer: A
Q: 133 Given the web application
deployment descriptor elements:
11. <filter>
12.
<filter-name>ParamAdder</filter-name>
13.
<filter-class>com.example.ParamAdder</filter-class>
14. </filter>
...
24. <filter-mapping>
25.
<filter-name>ParamAdder</filter-name>
26.
<servlet-name>MyServlet</servlet-name>
27.
<!--
insert element here -->
28. </filter-mapping>
Which element, inserted at line 27,
causes the ParamAdder filter to be applied when MyServlet is invoked by another
servlet using the RequestDispatcher.include method?
A. <include/>
B. <dispatcher>INCLUDE</dispatcher> C. <dispatcher>include</dispatcher>
D. <filter-condition>INCLUDE</filter-condition>
E. <filter-condition>include</filter-condition>
Answer: B
Q: 134 Your web
application uses a simple architecture in which servlets handle requests and
then forward to a JSP using a request dispatcher. You need to pass information
calculated by the servlet to the JSP; furthermore, that JSP uses a custom tag
and must also process this information. This information must NOT be accessible
to any other servlet, JSP or session in the webapp. How can you accomplish this
goal?
A. Store the data in a public instance variable in the servlet.
B. Add an attribute to the request object before using the request dispatcher. C. Add an attribute to the context object before using the request dispatcher.
D. This CANNOT be done as the tag handler has no means to extract this data.
Answer: B
Q: 135 A JSP page
needs to set the property of a given JavaBean to a value that is calculated
with the JSP page. Which three jsp:setProperty attributes must be used to
perform this initialization? (Choose three.)
A. id
B. val C. name
D. param
E. value
F. property
G. attribute
Answer: C, E, F
Q: 136 Your web application views
all have the same header, which includes the <title> tag in the
<head> element of the rendered HTML. You have decided to remove this
redundant HTML code from your JSPs and put it into a single JSP called
/WEB-INF/jsp/header.jsp. However, the title of each page is unique, so you have
decided to use a variable called pageTitle to parameterize this in the header
JSP, like this:
10. <title>${param.pageTitle}<title>
Which JSP code snippet should you
use in your main view JSPs to insert the header and pass the pageTitle
variable?
</jsp:insert>
B. <jsp:include page='/WEB-INF/jsp/header.jsp'> ${pageTitle='Welcome Page'}
</jsp:include>
C. <jsp:include file='/WEB-INF/jsp/header.jsp'> ${pageTitle='Welcome Page'}
</jsp:include>
D. <jsp:insert page='/WEB-INF/jsp/header.jsp'> <jsp:param name='pageTitle' value='Welcome Page' /> </jsp:insert>
E. <jsp:include page='/WEB-INF/jsp/header.jsp'> <jsp:param name='pageTitle' value='Welcome Page' /> </jsp:include>
Answer: E
Q: 137 A JSP page
needs to instantiate a JavaBean to be used by only that page. Which two
jsp:useBean attributes must be used to access this attribute in the JSP page?
(Choose two.)
B. type
C. name
D. class
E. scope
F. create
Answer: A, D
Q: 138 Click the Exhibit button.
Given the HTML form:
1. <html>
2. <body>
3.
<form
action="submit.jsp">
4.
Name:
<input type="text" name="i1"><br>
5.
Price:
<input type="text" name="i2"><br>
6.
<input
type="submit">
7.
</form>
8. </body>
9. </html>
Assume the product attribute does NOT yet exist in any
scope.
Which code snippet, in submit.jsp,
instantiates an instance of com.example.Product that contains the results of
the form submission?
${product.price = param.i2}
C. <jsp:useBean id="product" class="com.example.Product"> <jsp:setProperty name="product" property="name" param="i1" />
<jsp:setProperty name="product" property="price" param="i2" /> </jsp:useBean>
D. <jsp:useBean id="product" type="com.example.Product"> <jsp:setProperty name="product" property="name" value="<%= request.getParameter( "i1" ) %>" /> <jsp:setProperty name="product" property="price" value="<%= request.getParameter( "i2" ) %>" /> </jsp:useBean>
Answer: C
Q: 139 Click the Task button.
Place the events in the order they occur.
Answer: Check ExamWorx eEngine, Download from Member
Center
Q: 140 For an
HttpServletResponse response, which two create a custom header? (Choose two.)
B. response.addHeader("X-MyHeader", "34");
C. response.setHeader(new HttpHeader("X-MyHeader", "34"));
D. response.addHeader(new HttpHeader("X-MyHeader", "34"));
E. response.addHeader(new ServletHeader("X-MyHeader", "34"));
F. response.setHeader(new ServletHeader("X-MyHeader", "34"));
Answer: A, B
Q: 141 You need
to create a servlet filter that stores all request headers to a database for
all requests to the web application's home page "/index.jsp". Which
HttpServletRequest method allows you to retrieve all of the request headers?
B. String[] getRequestHeaders()
C. java.util.Iterator getHeaderNames()
D. java.util.Iterator getRequestHeaders()
E. java.util.Enumeration getHeaderNames()
F. java.util.Enumeration getRequestHeaders()
Answer: E
Q: 142 Given an
HttpServletRequest request and HttpServletResponse response, which sets a
cookie "username" with the value "joe" in a servlet?
B. request.setCookie("username", "joe")
C. response.addCookie("username", "joe")
D. request.addHeader(new Cookie("username", "joe"))
E. request.addCookie(new Cookie("username", "joe"))
F. response.addCookie(new Cookie("username", "joe"))
G. response.addHeader(new Cookie("username", "joe"))
Answer: F
Q: 143 Click the Task button.
Given a request from
mybox.example.com, with an IP address of 10.0.1.11 on port 33086, place the
appropriate ServletRequest methods onto their corresponding return values.
Answer: Check ExamWorx eEngine, Download from Member
Center
Q: 144 Your web application requires the ability to load and remove web files
dynamically to the web container's file system. Which two HTTP methods are used
to perform these actions? (Choose two.)
B. POST
C. SEND
D. DELETE
E. REMOVE
F. DESTROY
Answer: A, D
Q: 145 Every page
of your web site must include a common set of navigation menus at the top of
the page. This menu is static HTML and changes frequently, so you have decided
to use JSP's static import mechanism. Which JSP code snippet accomplishes this
goal?
A. <%@ import file='/common/menu.html' %>
B. <%@ page import='/common/menu.html' %> C. <%@ import page='/common/menu.html' %>
D. <%@ include file='/common/menu.html' %>
E. <%@ page include='/common/menu.html' %>
F. <%@ include page='/common/menu.html' %>
Answer: D
Q: 146 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?
B. <%! int count = 0; %>
C. <jsp:declaration.instance> int count = 0; <jsp:declaration.instance>
D. <jsp:scriptlet.declaration> int count = 0; <jsp:scriptlet.declaration>
Answer: A
Q: 147 You have a
new IT manager that has mandated that all JSPs must be refactored to include no
scritplet code. The IT manager has asked you to enforce this. Which deployment
descriptor element will satisfy this constraint?
A. <jsp-property-group> <url-pattern>*.jsp</url-pattern>
<permit-scripting>false</permit-scripting> </jsp-property-group> B. <jsp-config> <url-pattern>*.jsp</url-pattern> <permit-scripting>false</permit-scripting> </jsp-config>
C. <jsp-config> <url-pattern>*.jsp</url-pattern> <scripting-invalid>true</scripting-invalid> </jsp-config>
D. <jsp-property-group> <url-pattern>*.jsp</url-pattern> <scripting-invalid>true</scripting-invalid> </jsp-property-group>
Answer: D
Q: 148 You need
to create a JSP that generates some JavaScript code to populate an array of
strings used on the client-side. Which JSP code snippet will create this array?
<% for ( int i = 0; i < serverArray.length; i++ ) { MY_ARRAY[<%= i %>] = '<%= serverArray[i] %>'; } %>
B. MY_ARRAY = new Array();
<% for ( int i = 0; i < serverArray.length; i++ ) { MY_ARRAY[${i}] = '${serverArray[i]}';
} %>
C. MY_ARRAY = new Array();
<% for ( int i = 0; i < serverArray.length; i++ ) { %> MY_ARRAY[<%= i %>] = '<%= serverArray[i] %>'; <% } %>
D. MY_ARRAY = new Array();
<% for ( int i = 0; i < serverArray.length; i++ ) { %> MY_ARRAY[${i}] = '${serverArray[i]}';
<% } %>
Answer: C
Q: 149 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?
B. <% if ( request.getHttpSession(false) == null ) { // special processing } %>
C. <% if ( requestObject.getSession(false) == null ) { // special processing } %>
D. <% if ( requestObject.getHttpSession(false) == null ) { // special processing } %>
Answer: A
Q: 150 You are
creating a new JSP 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.)
B. In the jspInit method.
C. In the constructor of the JSP's Java code.
D. In a JSP declaration, which includes an initializer block.
E. In a JSP declaration, which includes a static initializer block.
Answer: B, D, E
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