Tag: web technology

Quizzes (208) Questions (4176)

Questions Related to web technology

Multiple choice technology web technology

What line of code below might be combined in the same JSP page with a validation guard (for example, <% bean.validationGuard(); %> ), in order to create an alternate flow of control for scenarios in which exceptions arise. The validationGaurd method might throw an exception, which should cause the flow of control to continue in another user-defined page (assume JSP 1.0).

  1. <jsp:error page="errorPage.jsp" guard="true" />

  2. <%@ page language="java" buffer="8k" %>

  3. <jsp:useBean id="bean" class="examples.Bean" scope="request" />

  4. <%@ page language="java" errorPage="errorPage.jsp" buffer="8k" %>
Reveal answer Fill a bubble to check yourself
D Correct answer
Full explanation
Multiple choice technology web technology

What is the difference between doing an include or a forward with a RequestDispatcher?

  1. The forward method transfers control to the designated resource, while the include method invokes the designated resource, substitutes its output dynamically in the display, and returns control to the calling page.

  2. The two methods provide the same functionality, but with different levels of persistence.

  3. The forward method is deprecated as of JSP 1.1 and the include method should be used in order to substitute portions of a dynamic display at runtime.

  4. The include method transfers control to a dynamic resource, while the forward method allows for dynamic substitution of another JPS pages output, returning control to the calling resource.
Reveal answer Fill a bubble to check yourself
A Correct answer
Full explanation
Multiple choice technology web technology

Are custom tags available in JSP 1.0? If not, how else might you implement iteration from within a JSP?

  1. Yes, but the only tags available relate to database access.

  2. No. To iterate over a collection of values, one must use scriptlet code.

  3. No, but there is a standard <iterate> tag that may be used.

  4. Yes, but custom tags will not help developers create tags for use in iterating over a collection.
Reveal answer Fill a bubble to check yourself
B Correct answer
Full explanation
Multiple choice technology web technology

Choose the statement that best describes how to connect JSP pages and Enterprise JavaBeans (EJBs):

  1. Lookup the EJBs from within a JSP, but use the EJBs from within a basic JavaBean.

  2. Lookup and use the EJBs from a separate business delegate. The JavaBeans that work with JSP pages are clients to these business delegates and know nothing about EJB specifics.

  3. Lookup and use the EJBs from within a JSP page, but only as remote references.

  4. Lookup the EJBs from within a servlet, delegating usage to specific JSP pages.
Reveal answer Fill a bubble to check yourself
B Correct answer
Full explanation