Question 1

Which of the following aren't the methods for state/session management in the context of Servlets?

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Http Redirects
Hidden Variables
Cookies
Rewritten URLs
Using HttpSession Interface

Answer

Correct Option: A

Question 2

The variables local to the methods like service(), doPost() and doGet() are thread safe. True/False?

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True
False

Answer

Correct Option: A

Question 3

You want to use URL rewriting to support client browsers, which do not use cookies. Which method will you use to attach the session id to a URL that is to be used for the sendRedirect() method of the HttpServletResponse?

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encodeURL
encodeRedirectURL
encodeSessionURL
encodeSessionRedirectURL
None of these

Answer

Correct Option: B

Question 4

Which one of the following ServletRequest interface method returns more than one value associated with parameter?

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getParameterValue()
getParameters()
getParamValues()
getParameterValues()

Answer

Correct Option: D

Question 5

A transactional client receives TransactionRolledBackException from a call to a method on an entity bean. What could be the possible reason(s) for this?

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The bean method is throwing a checked exception and is configured with a transaction attribute of "Required".
The bean method is throwing an unchecked exception and is configured with a transaction attribute of "Required".
The bean does not throw an exception but is configured with a transaction attribute of "Mandatory".
The bean method is throwing an unchecked exception and is configured with a transaction attribute of "Requires New".

Answer

Correct Option: B

Question 6

Your application supports multiple client types including HTTP clients. Your business layer is implemented using Enterprise Java Beans. Which of the following is best suited for maintaining client state?

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Cookies
Entity Beans
HttpSession attributes
Stateful session beans
URL Rewriting

Answer

Correct Option: D

Question 7

Which enterprise bean type is defined without any client view interfaces?

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BMP Entity bean
CMP Entity bean
Stateful Session bean
Stateless Session bean
Message Driven Bean

Answer

Correct Option: E

Question 8

Which of the following is NOT an advantage of using the SessionFacade pattern?

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Hides model complexity from the client
Reduces network traffic
Provides a simple interface to the client
Enables the client to control transactions

Answer

Correct Option: D

Question 9

You want to locate an existing bean object but do not want to create a new instance, if an existing instance is not available. Which of the following bean attributes will you use in the jsp:useBean action?

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class
type
beanName
class and type
beanName and type

Answer

Correct Option: B

Question 10

A container-managed persistence (CMP) entity bean A has a one-to-many unidirectional relationship (CMR) to another container-managed persistence (CMP) entity bean B. Which interface can expose the methods related to this relationship?

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Only local interface of bean A
Local interfaces of both beans A and B
Only local home interface of bean A
Local home interfaces of both beans A and B

Answer

Correct Option: A

Question 11

Which method cannot be called by a stateful session bean using bean-managed transactions?

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getUserTransaction()
getRollbackOnly()
getStatus()
None of these

Answer

Correct Option: B

Question 12

Which of the following statements are true about the given method declaration? MyEJBObject createWithName(String name) throws CreateException, RemoteException

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It is declared in the local home interface of a stateful session bean.
It is declared in the local home interface of a stateless session bean.
It is declared in the remote home interface of a stateful session bean.
It is declared in the remote home interface of a stateless session bean.

Answer

Correct Option: C

Question 13

Which of the following combinations (Design Pattern - Functionality) regarding Design Patterns is correct?

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Business Delegate - Reduces the coupling between presentation-tier clients and business services.
Data Access Object - Multiple View using the same model.
MVC - Enables easier migration to different persistence storage implementation.
Value Object - Reduces Network Traffic

Answer

Correct Option: D

Question 14

Classes in Java cannot be made static.

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True
False

Answer

Correct Option: B

Question 15

In Static inner classes, the data members and the member functions are by default static.

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True
False

Answer

Correct Option: B

Question 16

Annonymous Inner classes are not possible within an Interface.

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True
False

Answer

Correct Option: B

Question 17

Classes can be created at the runtime. ie; A class during its execution can create another class at the runtime, give it methods,decide what parameters should go into those methods, which all interfaces it should implement etc...

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True
False

Answer

Correct Option: A

Question 18

We all know about the Dynamic dispatch in java. But if there is dynamic dispatch , then is there a Static dispatch also? (Easy One...)

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True
False

Answer

Correct Option: A

Description: programming languages Online Quiz - 1
Number of Questions: 20
Created by: Aliensbrain Bot
Tags: programming languages

programming languages Online Quiz - 1

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