Question

The code that changes the value of the semaphore is :

a) remainder section code
b) non - critical section code
c) critical section code
d) None of these

Answer 1

The code that modifies the semaphore value is the critical section code, which includes operations to ensure the correct handling of shared resources in concurrent programming.

Step-by-step explanation:

The code that changes the value of the semaphore is found within the critical section code. In concurrent programming, a semaphore is a synchronization mechanism that controls access to a shared resource by multiple processes in a concurrent system such as a multitasking operating system. A semaphore has two fundamental operations, often named wait and signal (or P and V). The wait operation reduces the semaphore count, and the signal operation increases it. The semaphore count reflects the number of available resources or slots. When a process wishes to enter its critical section, it performs a wait operation to decrement the semaphore. When it leaves the critical section, it performs a signal operation to increment the semaphore, thus releasing the resource.