Multiple choice

Which of the following is based on pessimistic concurrency control?

  1. Disable/Enable

  2. Compare and Swap Instruction

  3. Test and Set Instruction

  4. Both Disable/Enable and Compare and Swap instruction

  5. None of the above

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Block everything that could possibly interfere so that nothing will interfere and this is known as pessimistic approach.