J2EE Technologies MCQs and Notes

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Mr. Dubey • 52.30K Points
Coach

Q 1. 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 Tr

M

Mr. Dubey • 52.30K Points
Coach

Q 2. What is the built on top of the socket programming?

(A) EJB

(B) RMI

(C) Both A & B

(D) None of the above

M

Mr. Dubey • 52.30K Points
Coach

Q 3. 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

M

Mr. Dubey • 52.30K Points
Coach

Q 4. 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

M

Mr. Dubey • 52.30K Points
Coach

Q 5. 1099 is the default port used by RMI Registry.

(A) True

(B) False

(C) none

(D) all

M

Mr. Dubey • 52.30K Points
Coach

Q 6. 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

M

Mr. Dubey • 52.30K Points
Coach

Q 7. RMI Architecture consists of how many layers?

(A) 5

(B) 3

(C) 4

(D) 2

M

Mr. Dubey • 52.30K Points
Coach

Q 8. 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

M

Mr. Dubey • 52.30K Points
Coach

Q 9. 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

M

Mr. Dubey • 52.30K Points
Coach

Q 10. Which package is used for Remote Method Invocation (RMI)?

(A) java.lang.rmi

(B) java.lang.reflect

(C) java.applet

(D) java.rmi