当前分类： SCDCD(310-081)
问题：单选题A developer wants too use EL to invoke a function using S{my：bloof（“foof”）}. Which is always true？（）A The method invoked by this function must be statie.B The function class must implement the Function interface.C The expression is NOT a valid EL ex...
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问题：单选题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. Whic...
问题：多选题Which two authentication mechanisms provide weaker protection than other mechanisms？（）AHTTP Basic AuthenticationBForm Based AuthenticationCHTTP Digest AuthenticationDHTTPS Client Authentication...
问题：单选题A Company.com developer is designing a multi-tier web application and discovers a need to hide the details of establishing and maintaining remote communications from the client. In addition， because the business and resource tiers are distributed， the ...
问题：单选题Which HTTP method has the characteristic that multiple indential requests may produce side effect beyond those of a single request（）？A PUTB GETC INFOD POSTE HEADF TRACE...
问题：多选题A developer chooses to avoid using SingleThreadModel but wants to ensure that data is updated in a thread-safe manner. Which two can support this design goal？（）AStore the data in a vocal variable.BStore the data in an instance variable.CStore the data ...
问题：多选题Which two are characteristics of the Intercepting Filter pattern？（）Ait provides centralized request handling for incoming requests.BIt forces resource authentication to be distributed across web components.CIt reduces coupling between presentation-tier...
问题：单选题Given the HttpServlet code： getServletContext（）.setAttribute（“foo”， “value”）； What is the result？（）A The attribute foo is placed in the applicationB A ServletContextListener registered for that servlet is notifiedC A ServletAttributeListener regis...
问题：多选题Which the two about WAR files are true？（）AWAR files must be located in the web application library directory.BWAR files must contain the web application deployment descriptor.CWAR files must be created by using archive tools to designed specifically fo...
问题：单选题What is the result（）？A 2B 4C 8D 16E The code will not compile....
问题：单选题Given 1. public class Foo { 2. public static void main （String [] args） } 3. try { return；} 4. finally { Syste.out.printIn （“Finally”）；} 5. } 6. } What is the result（ ）？A The program runs and prints nothing.B The program runs and prints “...
问题：多选题Given a header in an HTTP request： X-Retries：4 Which two retrieve the value of the header from a given ServletRequest request？ （）Arequest.getHeader （“X-Retries”）Brequest.getIntHeader （“X-Retries”）Crequest.getRequestHeader （“x-Retries”）Drequest.getHead...
问题：多选题Which two are valid declarations of char？（）AChar ch = “a”；Bchar ch = “”；Cchar ch = “café”；Dchar ch = “ucafe”；Echar ch = “ucafe’；Fchar ch = “u10100’；Gchar ch = （char） true；...
问题：单选题Which path， relative to a web application’s root， identifies the web application’s deployment descriptor？（）A /conf/web.xmlB /WEB-INF/web.xmlC /conf/server.xmlD /META-INF/web.xmlE /WEB-INF/rules.xmlF /META-INF/server. Xml...
问题：单选题A JSP page needs to perform some operations before servicing the first request. Where can this be done？（）A within a method called jspInitB within the page directive of the JSP pageC within a scriptlet at the top of the JSP pageD within the XML ele...
问题：多选题Upon a user’s first visit to the website， which two operations are always performed when the getSession method is called with no arguments in a servlet？（）AAll URLs returned by the server are rewritten.BAn HttpSession object is created if necessary.CThe...
问题：多选题Which the following two statements are true？（）AAn inner class may be declared as static.BAn anonymous inner class can be declared as public.CAn anonymous inner class can be declared as private.DAn anonymous inner class can extend an abstract class.EAn ...
问题：单选题Which makes the local EJB component accessible to the web components in the web application deployment descriptor？（）A AB BC CD D...
问题：多选题For a given Servletresponse response， which two retrieve an object for writing text data？ （）Aresponse.getWriter（ ）Bresponse.getOutputStream（ ）Cresponse.getOutputWriter（ ）Dresponse.getWriter（ ） .getOutputStream（ ）Eresponse.getWriter（Writer.OUTPUT_TEXT（ ...
