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CS604 Operating Systems Final paper 23 February 2013

TOTAL   80 MARKS

TIME      2 HOURS

 

ALL MCQS FROM PAST PAPERS, ALL ARE VERY EASY

 

SUBJECTIVE

QNo.1   Name of three major frame allocation schemes?

QNo.2   how to protection of files and giving access to be secured in UNIX ?

QNo.3   what is lazy analyzer that is use in virtual memory?

QNo.4   Differentiate between  Cache and CPU Register ?

QNo.5   what is Index Allocation Method?

QNo.6   Define and briefly describe what is memory mapping system calls?

QNo.7   Hardware required for swapping, paging and demand paging

QNo.8   What are the file structures, define its protection.

QNo.9   Differentiate between logical and physical address.



Another Paper:

Total Questions: 52

Total Marks: 80

Total MCQs: 40 (Each of 1 Mark)

Total Short Questions: 4 (Each of 2 Mark)

Total Short Questions: 4 (Each of 3 Mark)

Total Long Questions: 4 (Each of 5 Mark)  

 

1.Write the names of common file structures. (2)

2.Which part of compiler/assembler perform the task of taking one or more objects generated and assemble them in to a single executable program. (2)

3.Write the method through which Linus/Unix commands can communicate with each other. (2)

4.Consider a process having its segment 15 having 5096 bytes. The process generates a logical address (15, 3921). What page does the logical address refers to? (2)

5.What is mounting? Name its two types. (3)

6.Same question as question no 4. (3)

7.Which term is best suited for the situation where several process access  and manipulate shared data concruntly and final value of data depends which process finishes last. (3)

8.What is difference between deadlock avoidance and deadlock prevention. (3)

9.name two schemes for keeping track of free blocks and one advantage of each. (5)

10.Differentiate between logical and physical address. (5)

11. identify the necessary information that must be stored in process control block during the execution of program. (5)

12.What steps are needed for page replacement. (5)

 

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