Which of the following is a concurrency control protocol?

18. Which of the following is a concurrency control protocol?

  1. Lock Based Concurrency Control Protocol
  2. Timestamp Concurrency Control Protocol
  3. Validation Based Concurrency Control Protocol
  4. All of the above

Answer: D) All of the above

Explanation:

These are the concurrency control protocols -

  1. Lock Based Concurrency Control Protocol
  2. Timestamp Concurrency Control Protocol
  3. Validation Based Concurrency Control Protocol

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