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DL/I use how many types of Control Blocks?

27. DL/I use how many types of Control Blocks?

  1. 5
  2. 4
  3. 3
  4. 2

Answer: C) 3

Explanation:

DL/I uses the following three types of Control Blocks −

  • Database Descriptor (DBD)
  • Program Specification Block (PSB)
  • Access Control Block (ACB)

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