Multiple choice technology databases

What are the valid control blocks in MFS?

  1. MIF,MOF,DIF,DOF

  2. DIF,DOF,MID,MOD

  3. DIF,DOF,MFLD,DFLD

  4. None of the above
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B Correct answer
Explanation

In MFS (Message Format Service) for IBM mainframes, the valid control blocks are DIF (Data Input Format), DOF (Data Output Format), MID (Message Input Descriptor), and MOD (Message Output Descriptor). These control the formatting of messages.

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