PGDCA

DCN GUESS QUESTION PAPERS

Subject Name: Data Communication and Networking

NOTE --No one claims that these questions will be asked in the examination or whatsoever. These are the frequently asked questions in DCN.

DCN PAPER SET -1

Subject Name: Data Communication and Networking

Time: Three hours                               max: 100Marks 
                 

PART - A

Answer any TEN questions                                                                       (10 * 2 = 20 marks)

NOTE. All questions carry equal marks. Each answer should not exceed 50 words.

1. What do you mean by Data Communication?

2. What is LAN?

3. What is the use of Microwaves?

4. List the various guided media used for transmission.

5. Define Multiplexing.

6. What is circuit switching?

7. Expand ISDN.

8. What is an Analog data?

9. Define Bridge.

10. What is a Gateway?

11. What do you mean by Ring Topology?

12. Define Serial Transmission.

PART - B

Answer any FIVE questions.                                                                          

NOTE -All questions carry equal marks. Each answer should 

not exceed 200 words.                                        (5 * 5 = 25 marks)

1. Explain the five components of a data communication system.

2. What are the advantages and disadvantages of optical fiber?

3. Write a short note on packet switching.

4. Discuss in short about ATM Topology.

5. Give a short note on World Wide Web.

6. Write a short note on Bus and Star Topology with a neat 

diagram.

7. Discuss in short Twisted-Pair cable.

PART -C

Answer any four Question                                             (4 * 10 =40)                                                                                                                                           

NOTE -All questions carry equal marks.  Each answer should not exceed 500 words.

1. Discuss in detail about OSI Model.

2. Write a detail note on Parallel and Serial Transmission.

3. Explain the Ethernet MAC sub layer with a neat diagram.

4. Write a detail note on ISDN.

5. Discuss TCP/IP in detail.

Download DCN PAPER SET -1


                               DCN PAPER SET -2

DATA COMMUNICATIONS AND NETWORKING

Part - A

Answer an Answer any Ten                              (10x3 = 30 marks)

1. What are the components of a data communication system? List them.

2. Distinguish between point to point and multi point connections

3. What is the function of Network Layer?

4. Define Serial Transmission.

5. What is meant by FDM?

6. What are MODEMS?

7. Write a note on Single-bit error.

8. Define Switched Network.

9. What is ISDN?

10. Define ATM.

11. What are Gateways?

12. What is TCP/IP Network?

Part - B

Answer any five                                               (5x6=30marks)

13. Discuss about different categories of Network topology.

14. What are the responsibilities of the transport layer? Discuss briefly.

15. Distinguish between Asynchronous and Synchronous Transmissions.

16. Write short notes on Error detection.

17. Discuss briefly about FDDI.

18. Explain about X.25 layers.

19. Write short notes on WWW.

Part -C

Answer any four                                                (4x10=40 Marks)

20. Explain about different categories of computer networks.

21. Describe in detail Unguided Media.

22. Explain about Token Bus and Token Ring.

23. Discuss in detail Connection Oriented and Connectionless services.

24. Explain about ISDN Layers

25. Write short notes on:

(A) Bridges (B)ATM protocol

Download DCN PAPER SET -2


                                  DCN PAPER SET -3

DATA COMMUNICATIONS AND NETWORKING

PART - A

Answer the below Questions                                                                       (10 * 2 = 20 marks)

NOTE. All questions carry equal marks. Each answer should not exceed 50 words.

Q.1 Define Network.

Q.2What is socket address?

Q.3What is bandwidth?

Q.4Define data link layer.

Q.4 List out the fields of IP address.

Q.5 List out the fields of MAC layer.

Q.6 Guided media & Unguided media

Q.7 Full form of LAN, MAN, WAN

Q.8 Multiplexing & DE multiplexing.

Q.9 Analog signals & Digital signals

Q. 10 List the types of network models

Part - B

Answer any five                                               (5x6=30marks)

Q.1Explain about IPv4.

Q.2 Explain about IPv6

Q.3 IEEE ieee 802.11

Q.4 Explain about Physical layer

Q.5 Internet models.

Q. 6LAN, MAN, WAN

Q. 7 Difference between Analog and Digital Signals.

Q. 8 Transmission Model.

Q. 9 Data-link control and it's functions

Q.10 Network Addressing.

Q. 11 What is Ethernet. Explain its generations.

Part -C

Answer any four                                                (4x10=40 Marks)

Q.1 Explain OSI Layers.

Q.2 What is multiplexing. Explain its types.

Q. 3 WWW, FTP, TCP/IP, VLAN, UDP, SCTP.

Q. 4 Unicast, Multicast, Broadcast, Anycast.

Q.5 Explain Routing, Email & Congestion Control

Download DCN Paper Set -3