J2Ee Technologies Set 2 MCQs

Q1 | Which EJB container must provide an implementation of Java Naming and Directory Interface (JNDI) API to provide naming services for EJB clients and components?

Transaction support

Persistence support

Naming support

All mentioned above

Q2 | EJB is a specification for J2EE server, not a product; Java beans may be a graphicalcomponent in IDE.

TRUE

FALSE

none

all

Q3 | A session bean represents a multiple clients inside the Application Server.

TRUE

FALSE

none

all

Q4 | Which component does the Entity bean represent the persistent data stored in thedatabase?

Server-side component

Client-side component

server and client side component

None of the above

Q5 | EJB is like COM, Abbreviate the term COM?

Component Object Model

Component Oriented Model

Common Object Model

Common Oriented Model

Q6 | JMS is also known as a messaging service.

TRUE

FALSE

none

all

Q7 | What represents a persistent global data from the database?

Entity Bean

Session Bean

Both A & B

None of the above

Q8 | Which component does the Entity bean represents the persistent data stored in the database?

Server-side component

Client-side component

server and client side component

None of the above

Q9 | In EJB, middleware services are provided by EJB Container automatically.

TRUE

FALSE

none

all

Q10 | Which middleware services are provided by EJB?

Security

Transaction Management

Both A & B

None of the above

Q11 | Which server-side component is required to be deployed on the server?

EJB

RMI

Both A & B

None of the above

Q12 | Which type of instances retain no data or conversational state for a specific client?

Message-Driven Bean

Session Bean

Entity Bean

None of the above

Q13 | EJB technology is built on the top of Socket Programming

TRUE

FALSE

none

all

Q14 | How constructor can be used for a servlet?

Initialization

Constructor function

Initialization and Constructor function

Setup() method

Q15 | Can servlet class declare constructor with ServletConfig object as an argument?

TRUE

FALSE

none

all

Q16 | Java Servletsare efficient and powerful solution for creating .......................for the web.

dynamic content

static content

hardware

both and b

Q17 | ..................... is the first phase of the servlet life cycle.

Initialization

Service

Destruction

Both a and b

Q18 | The service phase of the servlet life cycle represents all interactions with requests until the servlet is ......................

created

running

initiated

destroyed

Q19 | GET methods are great for sending ....................amounts of information that you do not mind having visible in a URL.

negligible

huge

small

both and b

Q20 | Several vendors are adding ...................... to their existing database .................

JDOBC, middle-ware products

JDBC drivers, upper-ware products

middle-ware products, JDOBC drivers

JDBC drivers, middle-ware products

Q21 | Which of the following code is used to get an attribute in a HTTP Session object inservlets?

session.getAttribute(String name)

session.alterAttribute(String name)

session.updateAttribute(String name)

session.setAttribute(String name)

Q22 | A servlet needs to acquire a data source through a JNDI naming lookup. Which of the following is the best place to do this?

Constructor

init method

service method

doGet method

Q23 | What's the difference between servlets and applets? a. Servlets executes on Servers, where as

Applets executes on Browser

Servlets have no GUI, where as an Applet has GUI

Servlets creates static web pages, where as Applets creates dynamic web pages

Servlets can handle only a single request, where as Applet can handle multiple requests

Q24 | Which of the following code retrieves the body of the request as binary data?

DataInputStream data = new InputStream()

DataInputStream data = response.getInputStream()

DataInputStream data = request.getInputStream()

DataInputStream data = request.fetchInputStream()

Q25 | When destroy() method of a filter is called?

The destroy() method is called only once at the end of the life cycle of a filter

The destroy() method is called after the filter has executed doFilter method

The destroy() method is called only once at the begining of the life cycle of a filter

The destroyer() method is called after the filter has executed