NALANDA OPEN UNIVERSITY QUESTION, 2017, MCA, Part-II , Paper-XVII (Operating system Concepts and Networking Management)

NALANDA OPEN UNIVERSITY QUESTION, 2017, MCA, Part-II , Paper-XVII (Operating System concepts and Networking Management)

                                                                               2017
                                                                        Time: 3 hours
                                                                      Full Marks: 80
                                            Answer any five questions. All questions carry equal marks.


1. What is a computer network? Discuss its advantages and disadvantages in detail.

2. Differentiate between Multiprogramming and multithreading. Discuss layered architecture of windows 2000 operating system.

3. Discuss the important features of Linux operating system. Write a shell script in Linux to count the number of words in a given file.

4. Explain in detail two computer security mechanism. Explain the logical and physical structure of active directory with reference to windows 2000.

5. Discuss the concept of backups and restoration in linux operating system. What are wild cards? Discuss their importance with examples.

6. Mention the usage of following linux commands with an example of each:-
    (i) tail
    (ii) grep
    (iii) chmod
    (iv) sort

7. Explain the broad classification of advanced operating system. what happens if you try to " Cat"  a non-existing file? Explain the steps taken by OS  to handle this.

8. Explain in detial various types of transmission media with their advantages and disadvantages.

9. Discuss Virtual Private Network remote access in window 2000. explain FTP and TELNET.
    Discuss their importance and uses.

10. Write short notes on the following:-
       (i) Domain Name system
       (ii) Peer-to-Peer Network
       (iii) Concept of pipes, filters and redirection in linux
       (iv) Firewall