Semaphore Quiz

What does busy waiting, as mentioned in the context of semaphores, lead to?

• a) Efficient CPU cycle usage

• b) Reduced resource contention

• c) Wasted CPU cycles

• d) Improved process synchronization

what characterizes the disadvantage where other processes loop continuously in the entry code?

• a) Efficient process execution

• b) Reduced need for synchronization

• c) Continuous looping in entry code

• d) Decreased contention for resources

In the Bounded Buffer Problem (Producer-Consumer Problem), what is the primary function of the producer process?

• a) Remove data from a filled slot in the buffer

• b) Insert data into an empty slot of the buffer

• c) Control access to the critical section

• d) Manage the buffer's semaphore operations

What is the primary purpose of a semaphore in concurrent processes management?

• a) To initialize variables in a multiprocessing environment

• b) To solve the critical section problem and achieve process synchronization

• c) To increment and decrement integer values

• d) To test and verify the accuracy of shared variables

What are the standard atomic operations associated with a semaphore?

• a) Increase and decrease

• b) Test and verify

• c) Wait () and signal ()

• d) Initialize and finalize

Which semaphore is used to acquire and release the lock in the solution to the Bounded Buffer Problem?

• a) m (mutex)

• b) empty

• c) full

• d) Producer

What term is used to describe a semaphore where a process "spins" while waiting for the lock?

• a) Efficient semaphore

• b) Blocking semaphore

• c) Productive semaphore

• d) Spinlock semaphore

What distinguishes a counting semaphore from a binary semaphore?

• a) A counting semaphore can only take binary values.

• b) A counting semaphore can have an unlimited count of states.

• c) A counting semaphore is specifically designed for initialization.

• d) A counting semaphore is restricted to two possible states.

In semaphore implementation with a waiting queue, what potential situation may arise, leading to two or more processes waiting indefinitely for an event caused only by one of the waiting processes?

• a) Efficient parallel processing

• b) Semaphore synchronization

• c) Semaphore deadlock

• d) Resource optimization

What is the main disadvantage of semaphores

• a) Efficient utilization of CPU cycles

• b) Reduced contention for critical sections

• c) Requirement for busy waiting

• d) Improved synchronization between processes