F 10000EE461122003 Pages: 2

Reg No.: Name:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
Seventh Semester B.Tech Degree Regular and Supplementary Examination December 2021 (2015 Scheme)

Course Code: EE461
Course Name: Modern Operating Systems
Max. Marks: 100 Duration: 3 Hours
PARTA
Answer all questions, each carries 5 marks. Marks
1 Explain the role of OS as Resource Manager (5)
2 Differentiate between client server computing environment and distributed (5)
computing Environment
3 State the different multi-threading models. Illustrate with suitable diagrams (5)
4 Enlist five file attributes. What you mean by extended file attribute? (5)
5 Explain segmentation technique. (5)
6 Enlist five types of files. Give its extension names to each. (5)
7 Define seek time and disk bandwidth. (5)
8 Explain RIAD Technology (5)
PART B
Answer any two full questions, each carries 10 marks.
9 Discuss monolithic structure and layered structure of OS with necessary (10)
diagrams
10 പ Explain Cluster Computing Environment with an example (5)
b) Explain the different User — Operating System interfaces (5)
11 പ What is the need of system calls in operating system (3)
b) Explain the procedure of making a system call, with proper illustration (7)
PART C
Answer any two full questions, each carries 10 marks.
12 a) Differentiate between multi programming and multi-processing. (5)
b) Differentiate between external fragmentation and internal fragmentation (5)

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