A.To manage the user’s login and logout activities.
B.To store information on the client-side between HTTP requests.
C.To store information on the server-side between HTTP requests.
D.To tell the web container to keep the HTTP connection alive so it can make subsequent requestswithout the delay of making the TCP connection.
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1.<%@ taglib prefix="x"
2.tagdir="/WEB-INF/tags/alpha" %>
3.<x：beta />
The sort.jsp page is requested.
Which two are true？（）
A.Tag files can only be accessed using a tagdir attribute.
B.The sort.jsp page translates successfully and invokes the tag defined by beta.tag.
C.The sort.jsp page produces a translation error because a taglib directive must always have a uriattribute.
D.Tag files can only be placed in /WEB-INF/tags， and NOT in any subdirectories of /WEB- INF/tags.
E.The tagdir attribute in line 2 can be replaced by a uri attribute if a TLD referring to beta.tag is createdand added to the web application.
Assume a JavaBean com.example.GradedTestBean exists and has two attributes. The attribute name is oftype java.lang.String and the attribute score is of type java.lang.Integer. An array of com.example.
GradedTestBean objects is exposed to the page in a request- scoped attribute called results. Additionally，an empty java.util.HashMap called resultMap is placed in the page scope. A JSP page needs to add the firstentry in results to resultMap， storing the name attribute of the bean as the key and the score attribute of thebean as the value.
Which code snippet of JSTL code satisfies this requirement？（）
A.${resultMap[results[0].name] = results[0].score}
B.<c：set var="${resultMap}" key="${results[0].name}" value="${results[0].score}" />
C.<c：set var="resultMap" property="${results[0].name}"> ${results[0].value}</c：set>
D.<c：set var="resultMap" property="${results[0].name}" value="${results[0].score}" />
E.<c：set target="${resultMap}" property="${results[0].name}" value="${results[0].score}" />
A.It may iterate over arrays， collections， maps， and strings.
B.The body of the tag may contain EL code， but not scripting code.
C.When looping over collections， a loop status object may be used in the tag body.
D.It may iterate over a map， but only the key of the mapping may be used in the tag body.
E.When looping over integers （for example begin=’1’ end=’10’）， a loop status object may not be used inthe tag body.
Click the Exhibit button.
Assuming the tag library in the exhibit is imported with the prefix stock，which custom tag invocation outputsthe contents of the variable exposed by the quote tag？（）
A.<；stock：quote&ensp；symbol="；SUNW"；&ensp；/>；${var}
B.${var}.&ensp；<；stock：quote&ensp；symbol="；SUNW"；&ensp；/>；
C.<；stock：quote&ensp；symbol="；SUNW"；>；.&ensp；${var}.&ensp；<；/stock：quote>；
D.<；stock：quote&ensp；symbol="；SUNW"；&ensp；var="；quote"；&ensp；/>；${quote}
A JSP page contains a taglib directive whose uri attribute has the value dbtags.
Which XML element withinthe web application deployment descriptor defines the associated TLD？（）
A.<tld><uri>dbtags</uri><location>/WEB-INF/tlds/dbtags.tld</location></tld>
B.<taglib><uri>dbtags</uri><location>/WEB-INF/tlds/dbtags.tld</location>. </taglib>
C.<tld>. <tld-uri>dbtags</tld-uri>. <tld-location>/WEB-INF/tlds/dbtags.tld</tld-location> . </tld>
D.<taglib><taglib-uri>dbtags</taglib-uri><taglib-location>/WEB-INF/tlds/dbtags.tld. </taglib-location>. </taglib>
最新試題
Click the ’Select and Place’ button.Place the events in the order they occur.
Which ensures that a JSP response is of type "text/plain"？（）
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？（）
Which is a benefit of precompiling a JSP page？（）
Click the ’Select and Place’ button.Place the events in the order they occur.
Given a web application in which the request parameter productID contains a product identifier.Which twoEL expressions evaluate the value of the productID？（）
Which two are valid and equivalent？（）
Click the ’Select and Place’ button.Place the events in the order they occur.
Click the ’Select and Place’ button.Place the events in the order they occur.
In which three directories， relative to a web application’s root， may a tag library descriptor file reside whendeployed directly into a web application？（）