Multiple choice technology mainframe

What is the purpose of the DD KEYLEN parameter?

  1. Specify the length of a data set key in bytes

  2. Override the key length of an SMS defined VSAM dataset

  3. Override the key length specified in the dataset label

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The KEYLEN parameter in JCL DD statements specifies the key length of a data set in bytes, overrides SMS-defined VSAM key lengths, and overrides dataset label specifications, making 'All of the above' correct.

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