The signal operation of the semaphore basically works on the basic _______ system call.

A. Continue()
B. Wakeup()
C. Getup()
D. Start()

The wait operation of the semaphore basically works on the basic _______ system call.

A. Stop()
B. Block()
C. Hold()
D. Wait()

What is the main disadvantage of spinlocks?

A. They are not sufficient for many process
B. They require busy waiting
C. They are unreliable sometimes
D. They are too complex for programmers

What are Spinlocks?

A. Cpu cycles wasting locks over critical sections of programs
B. Locks that avoid time wastage in context switches
C. Locks that work better on multiprocessor systems
D. All of the mentioned

What are the two atomic operations permissible on semaphores?

A. Wait and signal
B. Stop and wait
C. Hold and signal
D. None of the mentioned

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

A. Hardware for a system
B. Special program for a system
C. Integer variable
D. None of the mentioned

TestAndSet instruction is executed ____________

A. After a particular process
B. Periodically
C. Atomically
D. None of the mentioned

An un-interruptible unit is known as ____________

A. Single
B. Atomic
C. Static
D. None of the mentioned

To avoid deadlock ____________

A. There must be a fixed number of resources to allocate
B. Resource allocation must be done only once
C. All deadlocked processes must be aborted
D. Inversion technique can be used

Which one of the following is a visual ( mathematical ) way to determine the deadlock occurrence?

A. Resource allocation graph
B. Starvation graph
C. Inversion graph
D. None of the mentioned