Internet Technology 2076

Tribhuwan University

Institute of Science and Technology

2076

Bachelor Level / Seventh Semester / Science

Computer Science and Information Technology ( CSC-402 )

( Internet Technology )

Full Marks: 60

Pass Marks: 24

Time: 3 hours

Candidates are required to give their answers in their own words as far as practicable.

The figures in the margin indicate full marks.

Attempt all questions.

1. What do you mean by domain name system? How DNS resolves domain name into IP address?

2+4 marks view

2. Discuss functionalities of TCP. What is the use of 32-bit acknowledge number and sequence number in TCP header?

3+3 marks view

3. What is RFC? Differentiate POP from IMAP.

2+4 marks view

4. What is universal internet browsing? What is the need for multiple protocol support?

3+3 marks view

5. What is WML card and deck? Write a WML script illustrating card and deck.

3+3 marks view

6. What is the use of RADIUS Server? Discuss the various services provided by the RADIUS.

2+4 marks view

7. Why proxy servers are needed in internet system? How reverse proxy differs from forward proxy?

2+4 marks view

8. What is VPN tunneling? How IPSec is used to ensure VPN tunneling?

2+4 marks view

9. What are the challenges in e-commerce? What does the properties like richness and universal standard means in e-commerce?

3+3 marks view

10. Define IP interconnection. How transit differs from peering in IP interconnection.

2+4 marks view