Process Management-II GATE 2024 Question #396 with Solution

GATE 2024 · CS1 - Forenoon

Operating SystemsProcess Management-IIhardMCQ2 marks

Consider the following two threads T1 and T2 that update two shared variables a and b. Assume that initially a = b = 1. Though context switching between threads can happen at any time, each statement of T1 or T2 is executed atomically without interruption. T1: a = a + 1; b = b + 1; T2: b = 2 * b; a = 2 * a; Which one of the following options lists all the possible combinations of values of a and b after both T1 and T2 finish execution?

A(a=4,b=4); (a=3,b=3); (a=4,b=3)B(a=3,b=4); (a=4,b=3); (a=3,b=3)C(a=4,b=4); (a=4,b=3); (a=3,b=4)D(a=2,b=2); (a=2,b=3); (a=3,b=4)

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