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Operating Systems Concepts

Q1: A relationship between processes such that each has some part (critical section) which must not be executed while the critical section of another is being executed, is known as

A semaphore

B mutual exclusion

C multiprogramming

D multitasking

E None of the above

ANS:B - mutual exclusion

A semaphore is a variable used to control access to a common resource by multiple processes in a concurrent system. So option A is not possible.



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