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APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
SECOND SEMESTER M.TECH DEGREE EXAMINATION, APRIL/ MAY 2018

Branch: Computer Science and Engineering

Stream: Computer Science and Engineering

Course Code & Course Name

೦1೮56104 Operating System Design
Answer any two full questions from each part.

Limit answers to the required points.
Max. Marks: 60 Duration: 3 hours
PART A
1.3. Write detailed notes on Kernel Threads. (4.5)
0. Mention how Disabling and Enabling Interrupts takes place. (2.5)
c. Explain how Tasklets are declared. (2)
2. Account for the various Real Time Scheduling Policies available. (4.5) b. Mention the

ways in which New Work Queues are created. (2)

c. List out the salient features of Bottom Halves. (2.5)
3. a. Mention why System Call Numbers are important. (4.5)
b. Mention the various aspects of Interrupt Context. (4.5)
PART B
4. List out the various aspects of Contention and Scalability. (6)

b. Write notes on Busy Looping. (2.5)
c. Illustrate the importance of Zones in Memory Management. (2)

5, Mention the importance of Sequential Locks. (6) 0. Specify the context in which kfree()
is needed. (4.5)

a. What all are the advantages of Pre-emption Disabling. (6) b Write relevant notes on

Virtual File system. (2.5)

©. l)escribe on the Design of Slab Layer. (2)
PART C

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