Multiple choice technology mainframe

Which RECFM is faster to access?

  1. FB

  2. F

  3. V

  4. VB
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This appears to be a duplicate of question 136738. FB (Fixed Block) format is fastest for the same reasons: fixed-length records enable direct, predictable access without variable-length parsing overhead.

AI explanation

Fixed-Block (FB) records are generally faster to access than other record formats because each record has a known, uniform length packed efficiently into blocks, avoiding the extra length-descriptor overhead that variable-length formats (V, VB) require and improving I/O efficiency over unblocked fixed (F) records. This predictability lets the system calculate record locations directly rather than scanning for length markers.

Keep practicing — related questions