Operating Systems · Quiz 2 · 16 Mar 2025 · January 2025 term

Question 14: Consider the following code snippet from Bakery Algorith…

Question 14

+4 marksNumerical answer

Consider the following code snippet from Bakery Algorithm.

1lock(i) {
2    num[i] = MAX(num[0], num[1], ..., num[N-1]) + 1;
3    for (p = 0; p < N; ++p) {
4        while (num[p] != 0 && num[p] < num[i]);
5    }
6}

critical section

1unlock(i) {
2num[i] = 0;
3}

Considering that there are 5 processes, and initially num[0]=3 num[1]=0, num[2]=5, num[3]=2, num[4]=4, If Process 4 (num[3]) starts executing its critical section and then unlocks, what will be the new value of num[3] after P4 finishes execution?

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Question 14 of 17 in the IIT Madras BS Operating Systems (Operating Systems) Quiz 2 paper sat on 16 Mar 2025, in the January 2025 term (IIT M IMPROVEMENT AN EXAM QIM2 16 Mar 2025). It carries 4 marks.

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