JNTUH B.Tech 3-2 Sem / Osmania University CSE Branch Data Communication and Computer Networks
Important Questions Unit-Wise
UNIT-I (Physical Layer)
1. Explain data communication with its components.
2. Explain what is protocol with different examples.
3. Explain OSI reference model with suitable diagram
4. Explain TCP/IP reference model with suitable diagram.
5. Compare TCP/IP with OSI reference model.
6. What is network? Explain the different types of networks in details
7. Explain point-to-point and multi-point connection with suitable diagram.
8. Explain what is network topology and its types with suitable diagrams.
9. Explain data flow/communication flow/transmission modes with suitable diagrams
10. Explain the guided and unguided transmission media in brief with suitable diagram
11. Explain in brief Multiplexing?
12. Explain the different types of switching?
UNIT-II (Data Link Layer)
1. Explain data link layer with different functions.
2. Define framing. With suitable diagram explain byte stuffing and bit stuffing.
3. Explain HDLC protocols with suitable diagram
4. Explain Point-to-Point Protocol with suitable diagram
5. Explain error detection and error correction in Data link layer
6. Explain noiseless channel and how can we ensure flow control in data link layer.
7. Explain the following mechanisms
a. Stop-and-Wait ARQ
b. Sliding Window Protocol
c. Go-Back-N ARQ
d. Selective Repeat ARQ
8. Explain Random Access Protocols: Pure ALOHA and Slotted ALOHA with suitable diagrams
9. Explain in brief with suitable diagram:
a. CSMA
b. CSMA/CD
c. CSMA/CA
10. Explain Collision free protocols/Controlled Access protocols with diagram
11. Explain channelization with different types with help of suitable diagrams