Semaphore

Which of the following is causing wastage of CPU cycles.

• Spinlock

• Mutex lock

• Both of these

• None of these

Mutex is similar to which of these

• Counting semaphore

• Binary semaphore

• Moniter

• All of these

Which of the following tool is providing Hardware synchronization

• Semaphore

• Test and Set

• Monitor

• Mutex lock

At a particular time of computation the value of counting semaphore is 7, then 20 P operations and 15 V operations were completed on the semaphore. The result value of semaphore is

• 2

• 42

• 7

• 12

In which the access takes place when different processes try to access the same data concurrently and the outcome of the execution depends on the specific order, is called

• dynamic condition
  

• race condition

• essential condition
  

• critical condition