SPECIAL CARRY OVER THEORY EXAMINATION 2019

BCA-403        

B.C.A, - Semester-IV

SPECIAL CARRY OVER THEORY EXAMINATION 2019

DATA COMMUNICATION AND COMPUTER NETWORKS

                                 

Time:  03 Hours                                                                             Total Marks: 70

Note:     Attempt any five questions.

            

                                                                                                (14*5=70)

.

1.      What is computer networking? What are its main objectives of Computer Network?

2.      Discuss the OSI reference model? Discuss the functioning of each layer in detail.

3.      Explain Transmission media with the help of diagrams and their properties.     

4.      Explain, Slotted ALOHA and Pure ALOHA.                        

5.      What is framing? Explain the types of framing.

6.      Explain Domain Name System (DNS).

7.      Explain the LAN, MAN, and WAN.

8.      Difference Between Connectionless and Connection-Oriented Communication.

           9.      What are the advantages of encryption/decryption?

          10.  What is Error Control in Data Link Layer? Explain Stop and wait ARQ.

      Or

Short Notes :( Any Two)

(a) Routing.

(b) FTP and HTTP protocols.

(c) Transmission Mode.

(d) IP Addressing.