OS and Scheduling

Which is not a process state?

• waiting

• terminated

• blocked

• redirected

FCFS is operates similar to a

• stack

• sorting algorithm

• circle

• queue

A signal sent by a hardware or software to CPU indicating that something needs attention

• disturbance

• interrupt

• waiting

• exclusion

The operating system is a type of

• system software

• general purpose software

• utility software

• application software

The ability for a computer to execute more than one task simultaneously

• multitasking

• multiprogramming

• multiprocessing

• timesharing

Only the process executing the critical section is allowed access to the shared variable,all other processes should prevented from doing so until the completion of the critical section. This is often referred to as-

• Mutual exclusion

• semaphores

• Deadlock

• Interprocess communication

Semaphores are used to solve

• Deadlock

• Mutual exclusion

• Inter-process Communication

• Messaging

The strategy of allowing processes that are logically runnable to be temporarily suspended is called

• preemptive scheduling

• non preemptive scheduling

• shortest job first

• first come first served

To access the services of operating system, the interface is provided by the ___________

• System calls

• API

• Library

• Assembly instructions

Click on all the examples of Operating Systems

• Windows

• iOS

• Google Docs