Code No: R05310503

R05

Set No. 2

in

III B.Tech I Semester Supplementary Examinations,June 2010 OPERATING SYSTEMS Common to IT, E.COMP.E, E.CONT.E, EIE, CSE, CSSE Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ?????

(b) What is the purpose of TLB? (c) What is a paging demon? What does it do? (d) Compare swapping and overlays.

(a) Race Condition (b) Process Interaction

or

2. Write the short notes on the following

ld .

1. (a) How can logical address space be contiguous if the physical address space is not contiguous? Explain.

[4+4+4+4]

[8+8]

3. Explain about protection technique of critical section in LINUX.

[16]

uW

4. (a) Why is the average search time to find a record in a file less for an indexed sequential file than for a sequential file? Explain. (b) What is the difference between a file and a database? (c) What are typical operations that may be performed on a directory? [6+4+6] 5. Define Real-time operating systems. Explain their importance in various applications. [16]

nt

6. Draw and explain process state transition diagram with two suspended states. [16]

7. (a) Give the classification of intruders. Explain each class.

Aj

(b) Compare User-Oriented access control with data-oriented access control. [8+8]

8. (a) What is the difference between logical I/O and device I/O? (b) Explain feed back scheduling policy. ?????

1

[8+8]

Code No: R05310503

R05

Set No. 4

1. Explain about protection technique of critical section in LINUX.

[16]

ld .

2. (a) Give the classification of intruders. Explain each class.

in

III B.Tech I Semester Supplementary Examinations,June 2010 OPERATING SYSTEMS Common to IT, E.COMP.E, E.CONT.E, EIE, CSE, CSSE Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ?????

(b) Compare User-Oriented access control with data-oriented access control. [8+8] 3. Draw and explain process state transition diagram with two suspended states.

[16]

(b) What is the purpose of TLB?

or

4. (a) How can logical address space be contiguous if the physical address space is not contiguous? Explain. (c) What is a paging demon? What does it do?

uW

(d) Compare swapping and overlays.

[4+4+4+4]

5. Define Real-time operating systems. Explain their importance in various applications. [16] 6. (a) What is the difference between logical I/O and device I/O? (b) Explain feed back scheduling policy.

[8+8]

nt

7. (a) Why is the average search time to find a record in a file less for an indexed sequential file than for a sequential file? Explain. (b) What is the difference between a file and a database? (c) What are typical operations that may be performed on a directory? [6+4+6]

Aj

8. Write the short notes on the following (a) Race Condition

(b) Process Interaction

[8+8] ?????

2

Code No: R05310503

R05

Set No. 1

1. (a) What is the difference between logical I/O and device I/O?

[8+8]

ld .

(b) Explain feed back scheduling policy.

in

III B.Tech I Semester Supplementary Examinations,June 2010 OPERATING SYSTEMS Common to IT, E.COMP.E, E.CONT.E, EIE, CSE, CSSE Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ?????

2. (a) How can logical address space be contiguous if the physical address space is not contiguous? Explain. (b) What is the purpose of TLB? (c) What is a paging demon? What does it do?

[4+4+4+4]

or

(d) Compare swapping and overlays.

3. (a) Why is the average search time to find a record in a file less for an indexed sequential file than for a sequential file? Explain. (b) What is the difference between a file and a database?

uW

(c) What are typical operations that may be performed on a directory? [6+4+6] 4. Explain about protection technique of critical section in LINUX.

[16]

5. (a) Give the classification of intruders. Explain each class. (b) Compare User-Oriented access control with data-oriented access control. [8+8] 6. Write the short notes on the following

nt

(a) Race Condition

(b) Process Interaction

[8+8]

Aj

7. Define Real-time operating systems. Explain their importance in various applications. [16] 8. Draw and explain process state transition diagram with two suspended states. [16] ?????

3

Code No: R05310503

R05

Set No. 3

1. Explain about protection technique of critical section in LINUX.

in

III B.Tech I Semester Supplementary Examinations,June 2010 OPERATING SYSTEMS Common to IT, E.COMP.E, E.CONT.E, EIE, CSE, CSSE Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ????? [16]

2. Draw and explain process state transition diagram with two suspended states.

ld .

[16]

3. (a) Why is the average search time to find a record in a file less for an indexed sequential file than for a sequential file? Explain. (b) What is the difference between a file and a database?

or

(c) What are typical operations that may be performed on a directory? [6+4+6]

4. Define Real-time operating systems. Explain their importance in various applications. [16]

uW

5. (a) How can logical address space be contiguous if the physical address space is not contiguous? Explain. (b) What is the purpose of TLB?

(c) What is a paging demon? What does it do? (d) Compare swapping and overlays.

[4+4+4+4]

6. (a) What is the difference between logical I/O and device I/O? (b) Explain feed back scheduling policy.

[8+8]

nt

7. Write the short notes on the following (a) Race Condition

(b) Process Interaction

[8+8]

Aj

8. (a) Give the classification of intruders. Explain each class. (b) Compare User-Oriented access control with data-oriented access control. [8+8] ?????

4

R05 Set No. 2

(a) What is the difference between logical I/O and device I/O? (b) Explain feed back scheduling policy. [8+8] · 2. (a) How can logical address space be ...
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