J2Ee Technologies Set 4 MCQs

Q1 | What temporarily redirects response to the browser?

<%@directive%>

response.sendRedirect(URL)

response.setRedirect(URL)

Q2 | Which tag is used to set a value of a JavaBean?

Q3 | Can and <%–comment–%> be used alternatively in JSP?

TRUE

FALSE

none

all

Q4 | Java code is embedded under which tag in JSP?

Declaration

Scriptlet

Expression

Comment

Q5 | Which of the following is not a directive in JSP?

page directive

include directive

taglib directive

command directive

Q6 | In RMI Architecture which layer Intercepts method calls made by the client/redirects these calls to a remote RMI service?

Stub & Skeleton Layer

Application Layer

Remote Reference Layer

Tr

Q7 | 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?

Stub

Skeleton

Both A & B

None of the above

Q8 | Java supports RMI, RMI Stands for?

Random Method Invocation

Remote Memory Interface

Remote Method Invocation

Random Method Invocation

Q9 | An RMI Server is responsible for _______

Creating an instance of the remote object

Exporting the remote object

Binding the instance of the remote object to the RMI registry

All mentioned above

Q10 | Abbreviate the term DGC?

Digital Garbage Collection

Distributed Garbage Collection

Distributed Garbage Connection

None of the above

Q11 | RMI and EJB, provides services to access an object running in another JVM (known as remote object).

TRUE

FALSE

none

all

Q12 | In RMI, the objects are passed by _____.

Value

Reference

Value and Reference

None of the above

Q13 | RMI uses a layered architecture; each of the layers could be enhanced or replaced without affecting the rest of the system.

TRUE

FALSE

none

all

Q14 | What are the exceptions which have to be handled in a RMI client program?

RemoteException

NotBoundException

MalFormedURLException

All mentioned above

Q15 | RMI is a server-side component; It is not required to be deployed on the server.

TRUE

FALSE

none

all

Q16 | Which package is used for Remote Method Invocation (RMI)?

java.lang.rmi

java.lang.reflect

java.applet

java.rmi

Q17 | Which program obtains a remote reference to one or more remote objects on a serverand then invokes methods on them in an RMI application?

Server

Client

Both A & B

None of the above

Q18 | Which objects are used by RMI for communicating with the remote object?

Stub

Skeleton

Both A & B

None of the above

Q19 | RMI Architecture consists of how many layers?

5

3

4

2

Q20 | Which method in naming class specifies a name to the remote object?

bind(string name)

rebind(string name)

Both A & B

None of the above

Q21 | 1099 is the default port used by RMI Registry.

TRUE

FALSE

none

all

Q22 | RMI uses which protocol on top of TCP/IP (an analogy is HTTP over TCP/IP)?

Java Remote Method Protocol (JRMP)

Internet Inter-ORB Protocol (IIOP)

Jinni Extensible Remote Invocation (JERI)

All mentioned above

Q23 | Which method of the Naming class (found in java.rmi) is used to update the RMIregistry on the server machine?

rebind ()

lookup()

Both A & B

None of the above

Q24 | What is the built on top of the socket programming?

EJB

RMI

Both A & B

None of the above

Q25 | In RMI which layer defines and supports the invocation semantics of the RMI connection and this layer maintains the session during the method call?

The Stub & Skeleton Layer

The Application Layer

The Remote Reference Layer

The Tr