QUESTION $1$

In the blocking implementation of semaphores, a value of $-5$ indicates that $4$ processes are currently blocked on the semaphore.

$1)$False; it indicates that $5$ processes are currently blocked on the semaphore.

$2)$False; it indicates that $5$ processes have currently acquired the semaphore.

$3)$True; $4$ processes are currently blocked and one process has acquired the semaphore.

$4)$False; it indicates that $6$ processes are currently blocked on the semaphore and one process has acquired the semaphore.