Punjabi University 2008 M.Sc Information Technology OPERATING SYSTEM CONCEPTS AND NETWORKING MANAGEMENT - Question Paper

M.Sc-022 : OPERATING SYSTEM CONCEPTS AND NETWORKING MANAGEMENT ques. Paper 2008

Time: three hours
Maximum Marks: 100

Note : ques. number one is compulsory. ans any 3 ques. from the rest.
1. (i) Write a shell scnpt (in Linux) that prints all the contents of a few existing text file in upper case. (6)

(ii) You have taken a back-up of a directory containing several files onto 10 floppies using tar. When you try to restore these after a crash, the fifth floppy is obtained to be corrupted. How much data do you lose ? (4)

(iii) How is a database operating system various from a conventional operating system ? what are. (4)

(iv) Differentiate ranging from unicasting, broadcasting and multicasting. provide examples of every technique. (6)

(v) How does info flow in Internet environment ? define all the steps taking place at various layers. (6)

(vi) What do you understand by symmetric and asymmetric cryptography ? provide an example for every. (4)

(vii) Write the LINUX commands for the subsequent : (5)
(a) To display the info about any command.
(b) To sort all the files in alphabetical order in a provided directory.
(c) To print the calendar for any provided month and year
(d) To display status of all the processes.
(e) To run any process in the background.

(viii) List all the general functions of any operating system. (5)

2. (i) explain the difference behween microkernel and monolithic architecture. What kind of architecture does Windows 2000 O/S support ? define its kernel architecture in brief. (15)

(ii) List the important Linux directories and briefly define them. (5)

3. (i) Show the abstract model of virtual to physical address mapping and discuss. Also define virtual memory management scheme in Linux. (15)

(ii) List any 5 TCP/IP-related protocols and define them in brief. (5)

4. (i) ans the subsequent ques. with respect to Windows 2000 :
(a) What is the purpose of Dynamic Host configuration protocol and Window internet Naming Service ?
(b) How does a domain differ from a workgroup ? (4)

(ii) Differentiate ranging from LAN and WAN. (5)

(iii) elaborate the 2 general methods of implementing network security by Firewalls ? what are. (5)

5. (i) What is multithreading? How is it various from a process ? define the process and thread management in Linux. (10)

(ii) What is the purpose of VPN (Virtual private Network) ? Name a few VPN technologies supported by Windows 2000. (4)

(iii) What is Kerberos ? define the Kerberos management in Windows operating system. (6)

Earning:   Approval pending.