Linux Questions Answers

1. Kernel minimizes the frequency of disk access by keeping a pool of internal data buffer which helps to increase the response time, this is known as ?

1. Buffer cache
2. Spooling
3. Pooling
4. Virtual Memory

2. How applications communicates with kernel ?

1. Not disclosed by linux team
2. SSL
3. System Calls
4. Shell

3. Kernel is known as core of operating system.

1. True
2. False

4. What is meaning of ILP32 ?

1. 32 bit Integrated, Long & Pointer
2. 32 bit Integer, Long & Pointer
3. 32 bit Integer, Long & Point
4. 32 bit Integer, Lost & Pointer

5. Solaris is product of ?

1. IBP
2. IBM
3. Microsoft
4. Sun Microsystems

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

Operating System Questions Answers

1. Main function of shared memory is:

1. to use primary memory efficently
2. to do intra process communication
3. to do inter process communication
4. none of above

2. If the property of locality of reference is well pronounced in a program

1. the number of page faults will be more
2. the number of page faults will be less
3. the number of page faults will same
4. none of above

3. Which one is true

1. The linkage editor is used to edit programs which have to later link together
2. The linkage editor links object module during compiling
3. The linkage editor links objects modules and resolves external references between them before loading
4. none of above

4. Disk scheduling includes deciding

1. which should be accessed next
2. order in which disk access requests must be serviced
3. the physical location of the file
4. the logical location of the file

5. Belady anamoly occurs in

1. Optimal replacement
2. FIFO
3. LRU
4. both in FIFO and LRU