Question 1

Which method of the request object is used to extract values of the input fields in a form when it is submitted?
A) getParameter
B) getParameterNames
C) getValues
D) putValues

Accepted Answer

The getParameter method of the request object is used to extract the value of a particular input field in a form when it is submitted.

Question 2

Which of the following is true for CORBA?
A) Protocol for distributed computing
B) Database specification
C) Specification for distributed objects
D) Both (c) and (d) above.

Accepted Answer

CORBA is a specification for distributed objects.

Question 3

Which EJB uses EJB-QL for query operations?
A) BMP Entity Bean
B) CMP Entity Bean
C) Session Bean
D) Message-Driven Bean

Accepted Answer

CMP (Container-Managed Persistence) Entity Beans use EJB-QL (Enterprise JavaBeans Query Language) for query operations to interact with the database.

Question 4

Which of the following is true for Java Bean?
A) It can not be a GUI component
B) It never implements serializable interface
C) It has zero-argument constructor
D) It is a distributed component

Accepted Answer

Java Beans are reusable software components for Java that are manipulated visually in a builder tool. They are designed to be configured in an application development environment and must have a no-argument constructor to allow for their easy instantiation and configuration.

Question 5

Which of the following is not true for <jsp:useBean> tag in JSP page?
A) Locates a bean instance
B) Stores object reference of the bean in a variable
C) Creates an instance if fails to locate the bean instance
D) All the above.

Accepted Answer

The <jsp:useBean> tag can locate a bean instance, store its reference, and create a new instance if it fails to locate one, so all the statements are true.

Quiz 5: EJB, JSP, and Corba

Which method of the request object is used to extract values of the input fields in a form when it is submitted?

Which of the following is true for CORBA?

Which EJB uses EJB-QL for query operations?

Which of the following is true for Java Bean?

Which of the following is not true for <jsp:useBean> tag in JSP page?