Questions
Syllabus
Qns. By Syllabus

Semester

Subject

Year

Bachelors Level/Second Year/Fourth Semester/Science csit/fourth semester/computer networks/syllabus wise questions

B.Sc Computer Science and Information Technology

Institute of Science and Technology, TU

Computer Networks (CSC263)

Year Asked: 2076, syllabus wise question

Application Layer
1.
Why do we need a DNS system when we can directly use an IP address? what is domain name space? [5]
Data Link Layer
1.
Define flow control. Explain Go-Back-N ARQ with suitable example. How is it different from Stop-and-Wait ARQ? [10]
2.
Explain LAN with example. How is it different from PAN? [5]
Introduction to Computer Network
1.
Explain each layer of TCP/IP model in detail. Compare it with OSI model. [10]
2.
Define network topology. Explain ring topology along with its merits and demerits. [5]
3.
Write short notes on (any two): a. Connection-oriented service b. Bridge c. Hamming distance [5]
Multimedia &Future Networking
1.
Why do we need wireless LAN? Explain the architecture of IEEE 802.11 in detail. [5]
Network Layer
1.
Define routing table. Differentiate static routing table with dynamic routing table. [5]
2.
What is switching? Compare and contrast a circuit-switched network and packet-switched network. [5]
3.
What is NAT? How does it work? What are its benefits? [5]
4.
In a block of address, we know the IP Address of one host is 192.34.12.56/28. What are the first address(network address) and the last address (limited broadcast address) in this block? [5]
Physical Layer and Network Media
1.
Define transmission media. What are different types of transmission media. Explain different types of unguided media in detail. [10]