Operating System Questions Answers

1. Distributed systems should ?

1. high security
2. have better resource sharing
3. better system utilization
4. low system overhead

2. Disk scheduling involves deciding ?

1. which disk should be accessed next
2. the order in which disk access request should be made
3. physical location of files
4. type of disks a system should have

3. If the CPU scheduling policy is FCFS, then what would be average waiting time ?

1. 10 ms
2. 10.8 ms
3. 12 ms
4. 12.8 ms

4. Memory protection is of no use in single user system.

1. True
2. False

5. By which of following the problem of thrashing is significantly affected ?

1. program size
2. program structure
3. primary storage
4. secondary storage

6. Which type of software can be used to merge data of two files in one file ?

1. System software
2. Networking software
3. Documenting software
4. Utility Software

7. What is the name of values that are automatically provided by software to reduce keystrokes ?

1. Data Values
2. Default Values
3. Defined Values
4. Fixed Values

8. Which of following need a device driver

1. Cache
2. Disk
3. Main Menory
4. Registers

9. Supervisor state is only allowed to ?

1. Utility Softwares
2. Application Softwares
3. Operating System
4. Guest User

10. UNIX is a single user operating system.

1. True
2. False