CN (BCA 6th)

UNIT - I

1. Introduction to Data Communication: Data Communication fundamentals, Simplex, Half-Duplex, Full-Duplex Network definition, Network Hardware and Software, Network Topologies, Uses of Computer Networks, OSI reference model, TCP/IP Reference Model. Comparison of OSI & TCP/IP reference model.

2. Physical Layer: Transmission M e d i a , Switching, ISDN & its services, Multiplexing, Modems.

(No. of Periods: 15)

UNIT - II

3. Data Link Layer : Design Issue, Error Detection & Correction Codes, Elementary Data Link Protocols, Static & Dynamic Channel Allocation, Introduction to IEEE standards, Sliding Window Protocols: One-bit Sliding Window Protocol, Go Back n, Selective Repeat.

 (No. of Periods:

15)

UNIT - III

4. Network Layer : Design issues, Routing Algorithms: Shortest path routing, Flooding, Flow-Based Routing, Distance Vector Routing, Link State Routing, Algorithms & internetworking, Network Layer in The Internet: The IP Protocol, IPAddresses, Subnets, IPv4 and IPv6.

(No. of Periods: 15)

UNIT - IV

 5. Application Layer : Network Security & Privacy, Data Compression & Cryptography, Electronic Mail, Remote Login, File Transfer.