What happens in real time operating system?

• all processes have the same priority

• a task must be serviced by its deadline period

• process scheduling can be done only once

• kernel is not required

What does each processor in a distributed system have that distinguishes it from a centralized system?

• local memory

• clock

• both local memory and clock

• none of the mentioned

Which of the following is/are CPU scheduling algorithms in Operating Systems?

• Priority

• Round Robin

• Shortest Job First

• All of the mentioned

Which one of the following is not a real time operating system?

• RTLinux

• Palm OS

• QNX

• VxWorks

To which of the following is FCFS algorithm particularly troublesome?

• operating systems

• multiprocessor systems

• time sharing systems

• multiprogramming systems

The systems which allow only one process execution at a time, are called

• uniprogramming systems

• uniprocessing systems

• unitasking systems

• none of the mentioned

Which of the following is not an operating system?

• Windows

• Linux

• Oracle

• DOS

What does each process in Operating System have?

• open files

• pending alarms, signals, and signal handlers

• address space and global variables

• all of the mentioned

The portion of the

• assigning ready

• assigning

• assigning

• all of the

process scheduler in an operating system that dispatches processes is concerned with:

• processes to waiting queue

• running processes to blocked queue

• ready processes to CPU

• mentioned