OPERATING SYSTEMS QUESTIONS FOR WEEKLY TEST -4

DESCRIPTIVE QUESTIONS

1. Define Process. Explain Life Cycle of Process with state transition diagram.    
2. Explain operations on Processes?   
3. Explain Process Schedulers?                                                                      
4. Consider the following set of processes.

Process	Arrival Time	Burst Time
P1	0	10
P2	1	1
P3	3	2
P4	4	1
P5	5	5

                                                                           Calculate Average waiting time and Average Turn Around Time using FCFS, SJF (Non-Preemptive ) Scheduling.              

BITS

1.      Process creation in UNIX  is made by means of the kernel system call.    [ ]                                                                                                                                                        a)create()   b)join()            c)fork()            d)delay()

2.      The Time elapsed between , process submission to its total completion is known as ---_______.                                                  [                  ]

            a) Wait time    b)Response time          c)Turn around time     d)Throughput

3.      PCB stands for ____________________________________.

4.      __________________ is a light weight process.

            5.      The ­­­­­­­­­­­­­­­­­­­_______ is the module that gives control of the CPU to the process selected by                         The  scheduler.                                                                                          

OPERATING SYSTEMS NOTES UNIT-I,II

OS NOTES UNIT-I,II