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Operating Systems · Quiz 2 · 23 Nov 2025 · September 2025 term

Question 13: Assume that context switches can occur at any time durin…

Question 13

+4 marksOne or more correct options

Assume that context switches can occur at any time during the execution of the following code snippet. The variable counter is shared between two programs. Which of the following can be the possible final values of counter?

Initial value of counter =100=100

python
# Program A
R1 = counter
R1 = R1 + 10
counter = R1


# Program B
R2 = counter
R2 = R2 - 30
counter = R2

Select all that apply.

  1. A

    70

  2. B

    80

  3. C

    90

  4. D

    100

  5. E

    110

  6. F

    120

Show answer

Correct answers

  • A

    70

  • B

    80

  • E

    110

See the whole paperTake it as a mock test

Question 13 of 17 in the IIT Madras BS Operating Systems (Operating Systems) Quiz 2 paper sat on 23 Nov 2025, in the September 2025 term (IIT M DEGREE AN EXAM QDB2 23 Nov 2025 NEW). It carries 4 marks.

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