Punjab Technical University 2006-1st Sem M.Sc Information Technology -(IT) NETWORKING TECHNOLOGY & OPERATING SYSTEM - Question Paper

MSIT-102- NETWORKING TECHNOLOGY &
OPERATING SYSTEM
Msc IT first Semester (2096)

Time Allowed : three Hours Maximum Marks:75

Note: (i)Alll ques. from Part A are compulsory.
(ii) Attempt any 9 ques. from Part B. All ques. carry equal marks.


Part A
1.
i. What is the difference ranging from LAN and WAN.
ii. List out various Communications media used for networking.
iii. What components are needed to setup Networking in a Computer Lab.
iv. What is the difference ranging from Switch and Hub?
v. Define bit rate and band rate.
vi. What do you mean by Network Operating System?
vii. What is the role of Modem in Communication?
viii. What is the difference ranging from Multitasking and Multiprocessing?
ix. Define term CPU Scheduling.
x. What is the difference ranging from Logical Address Space and Physical Address Space?
xi. What is the difference ranging from Turnaround time and waiting time?
xii. Explain the concept of ‘SEMAPHORES’?
xiii. When do page fault occur? discuss properly.
xiv. Why is it difficult to protect a system in which users are allowed to do their own I/O?
xv. Explain the concept of “SPOOLING”.

15x2=30

Part B (any nine)
2. What is protocol? provide working of HTTP.
3. List out the 7 layers used in OSI Reference Model. provide working of any 3 layers in detail.
4. What do you understand by Topology? Which Topology is considered best in case of LAN setup?
5. What is the difference ranging from Twisted pair cable and Coaxial Cable where these are preffered?
6. What are 5 major activities of an Operating System in regard process management?
7. What are the properties of Distributed System?
8. Define the difference ranging from ‘Preemptive’ and ‘Nonpreemtive’ Scheduling.
9. Explain the subsequent allocation algorithms:

(i) 1st FIT (II) BEST FIT
10. How do Caches help to improve performance? Why do systems not use more or large caches if they are so useful?
11. What do you understand by Deadlocks? elaborate 4 conditions due to which Deadlock Situation can arise.
12. What is the real time operating system?
13. What do you understand by ‘hit-ratio’? How it is related to performance to CPU?

9x5=45

Earning:   Approval pending.