Saturday, November 28, 2015
Total No. of Questions: 9
COMPUTER OPERATING SYSTEM
SUBJECT CODE:PGDCA-103 (2012 Batch)
PAPER ID: [B0143]
Time: 3 Hrs. Max. Marks: 60
Instruction to Candidates:
1. Section-A is Compulsory consisting of Ten questions carrying Two marks each.
2. Section-B contains Five questions carrying Five marks each and students has to attempt any Four questions.
3. Section-C contains Three questions carrying Ten marks each and students has to attempt any Two questions.
1. Write briefly:
(a) Explain the difference between a program and a process.
(b) Expand SPOOL.
(c) What are the various memory allocation schemes?
(d) What is a distributed operating system?
(e) Discuss the methods used for authentication.
(f) Explain logical address.
(g) List the three functions of resource management.
(h) What is a kernel?
(i) What do you mean by inter-process communication?
(j) What are the advantages of having a partition?
2. The modern day OS are based on following mechanisms: (Briefly Explain)
3. Differentiate between virtual memory and physical memory.
4. Differentiate between pre-emptive and non-preemptive process scheduling algorithms.
5. Explain TRAP vs INTERRUPT.
6. Explain the process of segmentation with the help of an example.
7. The modern day operating systems (OS) have evolved after continuous development. List the important milestones you observe in the development of modern day OS.
8. What is file system? Explain file protection and allocation methods.
9. What is the difference between 1/0 mapped input/output and memory mapped input/output? What are the advantages and disadvantages of each?
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