1Z1-899 무료 덤프문제 온라인 액세스

A servlet class is injected with a JDBC data source. After injection has occurred, the servlet needs to create a cache out of some of the data in the database, so as to improve responsiveness.
Which two methods can host the cache creation code? (Choose two)

• A.A method annotated with @Resource
• B.A method annotated with @PostConstruct
• C.A method annotated with @PreDestroy
• D.Servlet.destroy()
• E.Servlet.init()
• F.A method annotated with @Init

A session-scoped attribute is stored by a servlet, and then servlet forwards to a JSP page. Which three jsp:useBean attributes must be used to access this attribute in the JSP page? (Choose three.)

• A.bean
• B.scope
• C.type
• D.name
• E.id
• F.beanName

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?

• A.Option D
• B.Option C
• C.Option A
• D.Option B

A Client wants to find out the size of an image file for which it has a URL, without downloading any of the bytes that comprise the image right away.
Which HTTP method should it use?

• A.PUT
• B.DELETE
• C.GET
• D.HEAD

Given the web application deployment descriptor elements:

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.<dispatcher>include</dispatcher>
• B.<filter-condition>INCLUDE</filter-condition>
• C.<include/>
• D.<filter-condition>include</filter-condition>
• E.<dispatcher>INCLUDE</dispatcher>