多项选择题

Which two actions protect a resource file from direct HTTP access within a web application？（）

A.Placing it in the /secure directory
B.Placing it in the /WEB-INF directory
C.Placing it in the /META-INF/secure directory
D.Creating a element within the deployment descriptor

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单项选择题

After a merger with another small business， your company has inherited a legacy WAR file but the originalsource files were lost. After reading the documentation of that web application，you discover that the WARfile contains a useful tag library that you want to reuse in your own webapp packaged as a WAR file.
What do you need to do to reuse this tag library？（）

A.Simply rename the legacy WAR file as a JAR file and place it in your webapp’s library directory.
B.Unpack the legacy WAR file， move the TLD file to the META-INF directory， repackage the whole thingas a JAR file， and place that JAR file in your webapp’s library directory.
C.Unpack the legacy WAR file， move the TLD file to the META-INF directory， move the class files to thetop-level directory， repackage the whole thing as a JAR file， and place that JAR file in your webapp’slibrary directory.
D.Unpack the legacy WAR file， move the TLD file to the META-INF directory， move the class files to thetop-level directory， repackage the WAR， and place that WAR file in your webapp’s WEB-INF directory.

多项选择题

Which three web application deployment descriptor elements allow web components to gain references toresources or EJB components？（）

A.ejb-ref
B.jdbc-ref
C.servlet-ref
D.resource-ref
E.javamail-ref
F.resource-env-ref

多项选择题

Which three are valid URL mappings to a servlet in a web deployment descriptor？（）

A.*/*
B.*.do
C.MyServlet
D./MyServlet
E./MyServlet/*
F.MyServlet/*.jsp