Question: 1
Which of the following is a challenge in a J2EE?
(A) Fault tolerance
(B) Durability
(C) Scalability
(D) Reliability
View Answer
Ans: D
Reliability
Question: 2
Which of the following is not a J2EE client?
(A) Web applications
(B) Applets
(C) Java Web Start clients
(D) JSP
View Answer
Ans: D
JSP
Question: 3
Which of the following is not a web centric component?
(A) Applets
(B) Web Services
(C) Servlets
(D) Java Server Pages
View Answer
Ans: A
Applets
Question: 4
Which of the following is not a reserved word?
(A) while
(B) goto
(C) if
(D) then
View Answer
Ans: D
then
Question: 5
Which one of the following that controls communication
between tiers in J2EE multi tiers architecture?
(A) API
(B) ACL
(C) JDBC
(D) RMI
View Answer
Ans: B
ACL
Question: 6
How can a servlet call a JSP error page?
(A) This capability is not supported
(B) When the servlet throws the exception, it will automatically be caught by the calling
JSP page
(C) The servlet needs to forward the request to the specific error page URL. The
exception is passed along as an attribute named “javax.servlet.jsp.jspException”
(D) The servlet needs to redirect the response to the specific error page, saving the
exception off in a cookie
View Answer
Ans: C
The servlet needs to forward the request to the specific error page URL. The exception
is passed along as an attribute named “javax.servlet.jsp.jspException”
Question: 7
Which of the following act as an interface between a
component and the low level platform?
(A) Session Bean
(B) Entity Bean
(C) Container
(D) Applets
View Answer
Ans: C
Container
Question: 8
Which of the following is not a feature of Message Driven
Bean?
(A) It has no client visibility
(B) The container cannot pool instances
(C) It does not have a local or remote interface
(D) It is invoked asynchronously by the container
View Answer
Ans: B
The container cannot pool instances
Question: 9
A JMS message producer is created by
(A) session
(B) connection
(C) destination
(D) industry
View Answer
Ans: A
session
Question: 10
Which technology provides the flexibility to swap between
XML processors with no application code changes?
(A) JAAS
(B) SAX
(C) XSLT
(D) JAXP
View Answer
Ans: D
JAXP
Question: 1
Which of the following is/are true about J2EE?
a. J2EE stands for Java 2 Enterprise Edition
b. J2EE is an environment for developing and deploying enterprise applications
c. J2EE specification is defined by Sun Microsystems Inc
d. The J2EE platform is one the best platform for the development and deployment of
enterprise application.
(A) both a and b
(B) both a and c
(C) both a, b and c
(D) all
View Answer
Ans: D
all
Question: 2
Which enterprise bean type is defined without any client
view interfaces?
(A) Message Driven Bean
(B) BMP Entity bean
(C) Stateless Session bean
(D) Stateful Session bean
View Answer
Ans: A
Message Driven Bean
Question: 3
Which of the following modifiers cannot be applied to a
method?
(A) protected
(B) private
(C) public
(D) abstract
View Answer
Ans: D
abstract
Question: 4
Which JDBC driver type is also referred as the java
protocol?
(A) type 1 JDBC to ODBC protocol
(B) type 2 java 1 native code driver
(C) type 3 JDBC driver
(D) type 4 JDBC driver
View Answer
Ans: C
type 3 JDBC driver
Question: 5
Which of the following is not a standard method called as
part of the JSP life cycle?
(A) jspDestroy()
(B) jsp Init()
(C) jspService()
(D) jspservice()
View Answer
Ans: D
jspservice()
Question: 6
Which of the following are J2EE modules?
(A) EJB, Web, Application client and Java servlet
(B) EJB, Web, Application client and Resource adapter
(C) EJB, Web, Applet and Resource adapter
(D) EJB, Web, Application client and Applet
View Answer
Ans: B
EJB, Web, Application client and Resource adapter
Question: 7
Which of the following should NOT be used to share data
between servlets in a distributed web application?
(A) Attributes of ServletContext
(B) Enterprise Java Beans
(C) Attributes of HttpSession
(D) Database
View Answer
Ans: A
Attributes of ServletContext
Question: 8
Which of the following statement is true?
(A) J2EE component is a self-contained functional software unit supported by a
container
(B) J2EE applications modules cannot be deployed as standalone units
(C) Modules cannot be assembled into J2EE applications
(D) J2EE components are written in the C programming language
View Answer
Ans: A
J2EE component is a self-contained functional software unit supported by a container
Question: 9
Which of the following is NOT an advantage of using the
SessionFacade pattern?
(A) Hides model complexity from the client
(B) Reduces network traffic
(C) Provides a simple interface to the client
(D) Enables the client to control transactions
View Answer
Ans: D
Enables the client to control transactions
Question: 10
JDBC driver is loaded by calling which of the following
methods
(A) call() method
(B) class.forName () methods
(C) close () method
(D) connect () methods
View Answer
Ans: B
class.forName () methods
Question: 1
Which of the following file extension does the EJB modules
of the application have?
(A) .xml
(B) .war
(C) .ear
(D) .jar
View Answer
Ans: B
.war
Question: 2
Which one of the following tier in J2EE multi tier architecture
provide internal functionality to J2EE application.
(A) Web Tier
(B) Enterprise Java Beans Tier
(C) Enterprise Interface System Tier
(D) Presentation Tier
View Answer
Ans: A
Web Tier
Question: 3
JMS Publish/Subscribe Messaging Domain is an
(A) one to one relationship between sender and receiver
(B) many to many relationship between sender and receiver
(C) one to many relationship between sender and receiver
(D) many to many relationship between sender and receiver
View Answer
Ans: C
one to many relationship between sender and receiver
Question: 4
Which of the following is a file that describes the style of
elements that appear on the webpage?
(A) cascading strong sheet
(B) controlling style sheet
(C) cascading style sheet
(D) none of the above
View Answer
Ans: C
cascading style sheet
Question: 5
Which of the following are not methods of the
java.lang.string class?
(A) substring
(B) append
(C) replace
(D) concat
View Answer
Ans: B
Append
Question: 1
Choose the statement that best describes the relationship
between JSP and servlets
(A) Servlets are built on JSP semantics and all servlets are compiled to JSP pages for
runtime usage
(B) JSP and sevlets are unrelated technologies
(C) Servlets and JSP are competing technologies for handling web requests. Servlets
are being superseded by JSP, which is preferred. The two technologies are not useful in
combination
(D) JSPs are built on servlet semantics and all JSPs are compiled to servlets for runtime
usage
View Answer
Ans: D
JSPs are built on servlet semantics and all JSPs are compiled to servlets for runtime
usage
Question: 2
Which of the following statements is NOT true about the
Common Client Interface of JCA?
(A) CCI cannot connect to non relational systems
(B) CCI defines a set of interfaces and classes whose methods allow a client to perform
typical data access operations
(C) A resource adapter is not required to provide support for the CCI
(D) CCI can connect to relational database systems
View Answer
Ans: A
CCI cannot connect to non relational systems
Question: 3
Which of the following is not true in JMS point to point
message domain?
(A) There is only one receiver
(B) The receiver can request a message
(C) The receiver must acknowledge the receipt of the message
(D) The receiver does not need to exist when the message is produced
View Answer
Ans: B
The receiver can request a message
Question: 4
What will be the maximum size for a cookie?
(A) 1 KB
(B) 2 KB
(C) 3 KB
(D) 4 KB
View Answer
Ans: D
4 KB
Question: 5
In JAAS, which of the following uses a CallbackHandler
object?
(A) AuthPermission
(B) Policy
(C) Credential
(D) LoginModule
View Answer
Ans: D
LoginModule
Question: 1
Which of the following is not a kind of exception that is
thrown by JDBC method?
(A) SQL Exception
(B) DataRounding
(C) DataTruncation
(D) SQL Warning
View Answer
Ans: B
DataRounding
Question: 2
Which of the following could be written with little knowledge
of java?
(A) Java Server Pages
(B) Java Servlets
(C) Common Gateway Interface
(D) Java Community Program
View Answer
Ans: A
Java Server Pages
Question: 3
Which of the following is a business component in J2EE?
(A) Enterprise Java Beans (EJB)
(B) Java servlet and JSP (Web)
(C) Applets
(D) Application clients
View Answer
Ans: A
Enterprise Java Beans (EJB)
Question: 4
Which of the following is the main drawback of CGI?
(A) Interfacing with corporate infrastructure
(B) Dynamic web pages
(C) Resource Intensive
(D) Scalability
View Answer
Ans: D
Scalability
Question: 5
Which of the following modifiers can be applied to a
constructor?
(A) volatile
(B) final
(C) private
(D) abstract
View Answer
Ans: C
Private
ENTERPRISE JAVA MCQS WITH ANSWER AND
EXPLANATION
Enterprise Java Questions and Answers Set 1
Set 1 Set 2 Set 3
1. Which of the following is the format for EJB deployment descriptor
files?
(a) XML
(b) XSL
(c) HTML
(d) Java
(e) DHTML.
2. EJB is a
(a) Middleware
(b) Scalable component architecture
(c) Component architecture to integrate legacy systems
(d) Component architecture to encapsulate business logic
(e) All of the above.
3. Which of the following EJB has no state?
i. Message-Driven Bean.
ii. BMP Entity Bean.
iii. Stateless Session Bean.
iv. Stateful Session Bean.
(a) Both (I) and (II) above
(b) Both (II) and (III) above
(c) Both (III) and (IV) above
(d) Both (I) and (IV) above
(e) Both (I) and (III) above.
4. Which of the following is true for EJB?
(a) EJB is server-side component architecture for distributed applications in Java
(b) EJB facilitates scalable, secure and transaction-oriented applications
(c) EJB supports portability and reusability
(d) EJB specification allows different vendor implementation of it
(e) All of the above.
5. Which of the following EJB type has no Remote interfaces?
(a) Message-Driven Bean
(b) BMP Entity Bean
(c) CMP Entity Bean
(d) Session Bean
(e) Sessionless Bean.
6. Which role in EJB architecture is responsible for EJB Server?
(a) EJB Deployer
(b) Application Assembler
(c) Network Engineer
(d) Server Provider
(e) Tool Vendor.
7. Which of the EJB has a passive state in its life cycle?
I. Stateless Session Bean.
II. Message-Driven Bean.
III. BMP Entity Bean.
(a) Only (I) above
(b) Only (II) above
(c) Only (III) above
(d) Both (I) and (II) above
(e) Both (II) and (III) above.
8. Which part of multi-tier enterprise application contains EJB
component?
(a) Application Server
(b) Web Server
(c) Database Server
(d) Fat Client
(e) Thin Client.
9. Which of the following distributed object technology is/are not
included in Java?
I. CORBA.
II. DCOM.
III. RMI.
IV. EJB.
(a) Only (I) above
(b) Only (II) above
(c) Only (III) above
(d) Only (IV) above
(e) All (I), (II), (III) and (IV) above.
10. Which of the following is not a property of EJB transaction?
(a) Atomicity
(b) Consistency
(c) Isolation
(d) Distributed
(e) Durability.
