Operating System (OS)
Semaphores

synchronize critical resources to prevent contention
synchronize critical resources to prevent deadlock
None of these
are used to do I/O
are used for memory management

ANSWER DOWNLOAD EXAMIANS APP

Operating System (OS)
The FIFO algorithm

executes first the job that last entered the queue
executes first the job that first entered the queue
None of these
execute first the job that has been in the queue the longest
executes first the job with the least processor needs

ANSWER DOWNLOAD EXAMIANS APP