Deck 4: RMI and JSP : Layers, Directives, and Functionality

Question 1

What temporarily redirects response to the browser?

A)<jsp:forward>
B)<%@directive%>
C)response.sendRedirect(URL)
D)response.setRedirect(URL)

Answer 1

response.sendRedirect(URL)

Question 2

Which tag is used to set a value of a JavaBean?

A)<c:set>
B)<c:param>
C)<c:choose>
D)<c:forward>

Answer 2

<c:set>

Question 3

Can <!-comment-> and <%-comment-%> be used alternatively in JSP?

A)True
B)False
C)none
D)all

Answer 3

False

Question 4

Java code is embedded under which tag in JSP?

A)Declaration
B)Scriptlet
C)Expression
D)Comment

Question 5

Which of the following is not a directive in JSP?

A)page directive
B)include directive
C)taglib directive
D)command directive

Question 6

In RMI Architecture which layer Intercepts method calls made by the client/redirects these calls to a remote RMI service?

A)Stub & Skeleton Layer
B)Application Layer
C)Remote Reference Layer
D)Transport Layer

Question 7

Which is an object, acts as a gateway for the client side, all the outgoing requests are routed through it and it resides at the client side and represents the remote object?

A)Stub
B)Skeleton
C)Both A & B
D)None of the above

Question 8

Java supports RMI, RMI Stands for?

A)Random Method Invocation
B)Remote Memory Interface
C)Remote Method Invocation
D)Random Method Invocation.

Question 9

An RMI Server is responsible for _______

A)Creating an instance of the remote object
B)Exporting the remote object
C)Binding the instance of the remote object to the RMI registry
D)All mentioned above

Question 10

Abbreviate the term DGC?

A)Digital Garbage Collection
B)Distributed Garbage Collection
C)Distributed Garbage Connection
D)None of the above

Question 11

RMI and EJB, provides services to access an object running in another JVM (known as remote object).

A)True
B)False
C)none
D)all

Question 12

In RMI, the objects are passed by _____.

A)Value
B)Reference
C)Value and Reference
D)None of the above

Question 13

RMI uses a layered architecture; each of the layers could be enhanced or replaced without affecting the rest of the system.

A)True
B)False
C)none
D)all

Question 14

What are the exceptions which have to be handled in a RMI client program?

A)RemoteException
B)NotBoundException
C)MalFormedURLException
D)All mentioned above

Question 15

RMI is a server-side component; It is not required to be deployed on the server.

A)True
B)False
C)none
D)all

Question 16

Which package is used for Remote Method Invocation (RMI)?

A)java.lang.rmi
B)java.lang.reflect
C)java.applet
D)java.rmi

Question 17

Which program obtains a remote reference to one or more remote objects on a server and then invokes methods on them in an RMI application?

A)Server
B)Client
C)Both A & B
D)None of the above

Question 18

Which objects are used by RMI for communicating with the remote object?

A)Stub
B)Skeleton
C)Both A & B
D)None of the above

Question 19

RMI Architecture consists of how many layers?

A)5
B)3
C)4
D)2

Question 20

Which method in naming class specifies a name to the remote object?

A)bind(string name)
B)rebind(string name)
C)Both A & B
D)None of the above

Question 21

1099 is the default port used by RMI Registry.

A)True
B)False
C)none
D)all

Question 22

RMI uses which protocol on top of TCP/IP (an analogy is HTTP over TCP/IP)?

A)Java Remote Method Protocol (JRMP)
B)Internet Inter-ORB Protocol (IIOP)
C)Jinni Extensible Remote Invocation (JERI)
D)All mentioned above

Question 23

Which method of the Naming class (found in java.rmi) is used to update the RMI registry on the server machine?

A)rebind ()
B)lookup()
C)Both A & B
D)None of the above

Question 24

What is the built on top of the socket programming?

A)EJB
B)RMI
C)Both A & B
D)None of the above

Question 25

In RMI which layer defines and supports the invocation semantics of the RMI connection and this layer maintains the session during the method call?

A)The Stub & Skeleton Layer
B)The Application Layer
C)The Remote Reference Layer
D)The Transport Layer

Question 26

In RMI Distributed object applications need to

A)Locate remote objects
B)Communicate with remote objects
C)Load class definitions for objects that are passed around
D)All mentioned above