Multiple choice technology mainframe

Alternate Index is a special type of

  1. a) KSDS

  2. b) ESDS

  3. c) RRDS

  4. d) None
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

An Alternate Index (AIX) in VSAM is physically structured and managed as a Key Sequenced Data Set (KSDS) containing index keys and pointers to the primary base cluster. Other dataset organizations like ESDS and RRDS do not support or use indexing structures in this manner.

AI explanation

To answer this question, you need to understand the concept of Alternate Index in the context of data storage.

Option A) KSDS - This option is correct. Alternate Index is a special type of Key Sequenced Data Set (KSDS) in mainframe systems. KSDS is a type of data set organization that allows records to be accessed sequentially using a key.

Option B) ESDS - This option is incorrect. ESDS stands for Entry Sequenced Data Set, which is another type of data set organization. It does not relate to Alternate Index.

Option C) RRDS - This option is incorrect. RRDS stands for Relative Record Data Set, which is yet another type of data set organization. It does not relate to Alternate Index.

Option D) None - This option is incorrect. Alternate Index is a special type of data set organization and is not "None".

The correct answer is A) KSDS. This option is correct because Alternate Index is a special type of Key Sequenced Data Set (KSDS).

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