Question

Critical section is a program segment

• A. which should run in a certain specified amount of time
• B. which avoids deadlock
• C. where shared resources are accessed
• D. which must be endorsed by pair of semaphore operation P and v

Answer 1

The correct option is C where shared resources are accessed

Critical section is a program segment where shared resources are accessed.

In concurrent programming, concurrent accesses to shared resources can lead to unexpected or erroneous behavior, so parts of the program where the shared resource is accessed are protected. This protected section is the critical section or critical region. It cannot be executed by more than one process at a time.

Critical section:-

A Critical Section is the part of a program that accesses shared resources. Only when a process is in its Critical Section can it be in a position to disrupt other processes. We can avoid race conditions by making sure that no two processes enter their Critical Sections at the same time.