What is a secondary index in an IMS DB system?

IMS DB - Quiz(MCQ)

An index that is used to improve the performance of database searches

An index that is created automatically by the database management system

An index that is created by the application program to improve access to the database

None of the above

Correct Answer : An index that is created by the application program to improve access to the database

Explanation : A secondary index in an IMS DB system is an index that is created by the application program to improve access to the database. It provides a way for the program to locate specific records in the database more quickly and efficiently than by searching through the entire database.

Recently Updated in IMS DB Questions

Which parameter specifies the language in which the application program is written in PSBGEN?

WRITE

LANG

PSBNAME

LANGUAGE

Correct Answer : LANG

Explanation : The LANG parameter specifies the language in which the application program is written, e.g., COBOL.

What is a VSAM (Virtual Storage Access Method) dataset in an IMS DB system?

A file that contains the database records

A file that contains the structure of the database

A program that is used to retrieve information from the database

None of the above

Correct Answer : A file that contains the database records

Explanation : In an IMS DB system, a VSAM (Virtual Storage Access Method) dataset is a file that contains the database records. It is used to store the data for the database.

The first 8 bytes of unqualified SSA holds ______.

White spaces

The segment category which is being used for processing

The segment name which is being used for processing.

None of the above

Correct Answer : The segment name which is being used for processing.

Explanation : The first 8 bytes of unqualified SSA holds the segment name which is being used for processing.