Computer Networks

Punjab Technical University PTU BCA, Sixth Semester

Syllabus

(BSBC 603) COMPUTER NETWORKS

Internal Assessment: 40 Marks                               External Assessment: 60 Marks

SECTION-A

Data Communications Concepts: Digital and Analog Transmissions-Modem, Parallel and Serial, Synchronous and Asynchronous, Modes of Communication: Simplex, Half Duplex, Full Duplex, Concept of Multiplexing, De-multiplexing.

Types of Networks: LAN, MAN, WAN.

Network Topologies: Bus, Star, Ring, Mesh, Tree, Hybrid.

Communication Channels: Wired Transmissions: Telephone Lines, Leased Lines, Switch Line, Coaxial Cables-base Band, Broadband, Optical Fiber Transmission.

SECTION-B

Wireless Transmission: (Standards and Specification) Microwave Transmission, Infrared Transmission, Laser Transmission, Radio Transmission and Satellite Transmission and Blue Tooth, Frequency Spectrum.

Communication Switching Techniques: Circuit Switching, Message Switching, Packet Switching.

Network Reference Models: OSI Reference Model, TCP/IP Reference Model, Comparison of OSI and TCP/IP Reference Models.

SECTION-C

Data Link Layer Design Issues: Services Provided to the Network Layer, Framing, Error Control (Error Detection and Correction Code), Flow Control, Data Link Layer in the Internet (SLIP, PPP).

Types of Multiplexing: FDM, TDM, CDMA.

SECTION-D

MAC Sub Layer: CSMA/CD/CA, IEEE Standards (IEEE802.3 Ethernet, Gigabit Ethernet, IEEE 802.4 Token Bus, IEEE 802.5 Token Ring)

The Network Layer: Design Issues, Routing Algorithms: Optimality Principle, Shortest Path Routing, Congestion Control Policies, Concept of Internetworking.