Computer Knowledge
Java Enterprise and Web Technologies
2,279 Questions
Java enterprise and web technologies questions focus on J2EE architecture, web services like SOAP, and servlet functionalities. These topics frequently appear in IT officer and specialist scale examinations. Regular practice ensures familiarity with enterprise application components.
HttpServlet methodsSOAP and web servicesEJB architecture rolesJ2EE componentsJSP servlet callingUDDI concepts
Java Enterprise and Web Technologies Questions
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Unshared server
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Persistent server
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WebSphere
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Java 2 ORB
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Transaction
B
Correct answer
Explanation
In this model for object activation defined by basic object adapter, the server is started by an entity other than BOA.
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URLConnection class
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URL class
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StackFrame class
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DatagramPacket class
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Naming
A
Correct answer
Explanation
This class in the java.net.URL is another abstract class used to create and control a connection to a platform and firewall specific location.
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StockHelper.java
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Stock
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_StockStub.java
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StockHolder.java
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Events
C
Correct answer
Explanation
This file generated by the command "idltojava Stock.idl" implements a local object which forwards all requests to the remote object.
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DatagramPacket class
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DatagramSocket class
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StackFrame class
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URL class
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quitEvent()
B
Correct answer
Explanation
Here, services such as Sun's network file system use user datagram protocol as the underlying protocol.
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Events
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Naming
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OrbixWeb
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AlarmPresentation
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Externalization
E
Correct answer
Explanation
This CORBA service coordinates the transformation of CORBA objects to and from outdoor media.
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StockPresentation
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Stock
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AlarmPresentation
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Portable object adapter
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Events
B
Correct answer
Explanation
This distributed object belongs to the distributed stock application represents a particular stock.
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Java servlet
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Java applet
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Java 2 ORB
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Java beans
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Events
A
Correct answer
Explanation
By using java servlets, java is inherently suited for large client/server applications.
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Java applet
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Filter
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OrbixWeb
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Portable object adapter
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Ajax
E
Correct answer
Explanation
By using Ajax, you can accomplish dynamically update the totals on your shopping cart without forcing the user to click update and wait for the server to resend the entire page.
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StackFrame class
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DatagramPacket class
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RemoteStackFrame class
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DebuggerCallback
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Transaction
C
Correct answer
Explanation
Using this class provided by sun.tools.debug library, the debugger can examine a suspended thread's stackframe.
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StackFrame class
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Transaction
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DatagramPacket class
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RemoteDebugger class
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DebuggerCallback
D
Correct answer
Explanation
Client applications use this class provided by sun.tools.debug library as an interface to the java debugging classes.
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VisiBroker for java
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WebSphere
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OrbixWeb
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Naming
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Unshared server
A
Correct answer
Explanation
This CORBA product is the ORB that is embedded in the Netscape communicator browser.
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Java applet
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Stateless session beans
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Stateful session beans
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Java beans
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Naming
C
Correct answer
Explanation
Stateful session beans are used if the client is an interactive application.
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WebSphere
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JDBC
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Java beans
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Filter
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Java IDL
E
Correct answer
Explanation
Java IDL supports distributed objects written entirely in the java programming language.
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EJB specification
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Servlet container
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Object life cycle
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EJB server provider
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Deployment descriptor
B
Correct answer
Explanation
Servlet container provides life cycle management with a single process to share and manage application wide resources and interaction with a web server.
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Java beans
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Java applet
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Stateless session bean
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WebSphere
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Stateful session bean
E
Correct answer
Explanation
The stateful session bean is used when the bean needs to hold information about the client across method invocations.