MCQ on 27.8.24 OS

Q1. Semaphore is a/an _______ to solve the critical section problem.

• hardware for a system

• special program for a system

• integer variable

• software

Q2. What are the atomic operations permissible on semaphores?

• wait and signal

• stop and wait

• hold and signal

• deadlock

Q3. The code that changes the value of the semaphore is ____________

• remainder section code

• non – critical section code

• critical section code

• exit code

Q4. What are the two kinds of semaphores?

• mutex & counting

• binary & counting

• counting & decimal

• decimal & binary

Q5. What will happen if a non-recursive mutex is locked more than once?

• Starvation

• Deadlock

• Aging

• Signaling