OPERATING SYSTEM, BCA Question Paper

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Roll No. .................

Total No. of Questions : 13]                                                                                      [Total No. of Pages : 02

Paper ID [A0219]

(Please fill this Paper ID in OMR Sheet)

BCA (404) (S05 / Old) (Sem. - 4th)

OPERATING SYSTEM

Time : 03 Hours                                                                                                      Maximum Marks : 75

Instruction to Candidates:

1) Section - A is Compulsory.

2) Attempt any Nine questions from Section - B.

Section - A

(15 x 2 = 30)

Q1)

a) What is a thread?

b) What is the multitasking?

c) What is a priority queue?

d) What is a logical Address?

e) What is tharashing?

f) What is a segment table?

g) Distinguish between a pipe and output redirection.

h) Why it is necessary to reallocate a program in memory?

i) What is meant by a concurrent process?

j) What is associate memory?

k) What is Multiprocessing?

l) What is a physical address?

m) What is a page map table?

n) What is a page fault?

o) What is a non contiguous allocation?

Section - B

(9 x 5 = 45)

Q2) What is an operating system? What are its different functions?

Q3) Explain the various component of operating system by taking examples from an operating system.

Q4) How are critical regions and the principle of mutual exclusion related to each other?

Q5) What is a process control block? What is the function of a process control block?

Q6) What are the various states of a process? Explain.

Q7) Explain the directory structure of an operating system.

Q8) Explain the condition necessary to produce a deadlock.

Q9) How a dead lock can be avoided?

Q10)Determine the differences between preemptive and non preemptive scheduling.

Q11)Explain difference between internal and external fragmentation.

Q12)What are the security requirement of an operating system?

Q13)What are the various allocations methods for the files? Explain.