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Q1. What is a network? What are its goals and applications?



Q2. Briefly explain how Internet evolved.



Q3. Write a short note on ARPAnet.



Q4. How does Internet work?



Q5. Write a short note on Interspace.



Q6. How is circuit switching different from message switching?



Q7. How does transmission take place across networks?



Q8. What are communication channels? Discuss various communication channels available for networks.



Q9. Write some advantages and disadvantages of the following:

(i) optical fibers
(ii) coaxial cables
(iii) twisted pair cables
(iv) radio waves
(v) micro waves
(vi) satellites.



Q10. What is bandwidth? How it measured?



Q11. What do you understand by data transfer rates?



Q12 Discuss and compare various types of networks.



Q13. Explain various mostly used topologies.



Q14. Discuss the factors that govern the selection of a topology for a network.



Q15. Compare and contrast
(i) Star and Bus topologies
(ii) Star and Tree topologies
(iii) Bus and Ring topologies.



Q16. What is the role of modem in electronic communications?



Q17. What are hubs? What are its types?



Q18. What is the role of a switch in a network?



Q19. Briefly discuss the role of following devices in the contex of networking.
(i) repeater
(ii) router
(iii) bridge
(iv) gateway.




Q20. What is a communication protocol? What is its role in a network?



Q21. Write short notes on:

(i) HTTP
(ii) TCP/IP
(iii) FTP.



Q22. What is wireless computing? How is it different from mobile computing?



Q23. Write short notes on the following:

(i) GSM
(ii) CDMA
(iii) WLL
(iv) 3G
(v) SMS
(vi) EDGE
(vii) UMTS



Q24. Discuss the advantages and disadvantages of E-mail.



Q25. Compare and contrast
(i) e-mail and voice mail
(ii) e-mail and chatting.



Q26. What is video conferencing? How is it related to networking?



Q27. What is web browser? What is a web server? How are these two related?



Q28. Write short notes on URLs and domain names.



Q29. What is web hosting? What are its various categories?



Q30. Explain briefly the following:

(i) HTML
(ii) XML
(iii) DHTML



Q31. What do you understand by network security? Why is it considered very important?



Q32. What is a firewall? Briefly explain different firewall techniques.



Q33. What is hacking? What is cracking? How are these two terms inter-related?



Q34. Define the following:
(a) Viruses
(b) Worms
(c) Trojan Horse
(d) Spam
(e) Cyber Crime
(f) India IT Act 2000
(g) IPR



Q35. What is the general process of designing networks?



Q36. While designing networks, what factors related to the network environment would you consider?



Q37. While designing networks, what factors related to performance, would you consider?



Q38. When would you prefer
(i) hubs over repeaters
(ii) bridges over hubs
(iii) switch over other network devices?



Q39. When would you opt for a router in a network?



Q40. What is the difference between client-side scripting and server-side scripting?



Q41. How are viruses harmful? How can you prevent them?



Q42. Out of the following, identify client side script(s) and server side script(s):

(a) ASP
(b) JavaScript
(c) VBScript
(d) JSP