EC2352 Computer Networks Anna University Syllabus, Question Bank, Question Papers ,Lecture Notes- Huge Collections ...

UNIT I PHYSICAL LAYER 

Data Communications â€" Networks - Networks models â€" OSI model â€" Layers in OSI

model â€" TCP / IP protocol suite â€" Addressing â€" Guided and Unguided Transmission

media

Switching: Circuit switched networks â€" Data gram Networks â€" Virtual circuit networks

Cable networks for Data transmission: Dialup modems â€" DSL â€" Cable TV â€" Cable TV for

Data transfer.

UNIT II DATA LINK LAYER 

Data link control: Framing â€" Flow and error control â€"Protocols for Noiseless and Noisy

Channels â€" HDLC

Multiple access: Random access â€" Controlled access

Wired LANS : Ethernet â€" IEEE standards â€" standard Ethernet â€" changes in the standard

â€" Fast Ethernet â€" Gigabit Ethernet.

Wireless LANS : IEEE 802.11â€"Bluetooth.

Connecting LANS: Connecting devices - Backbone networks - Virtual LANS

Virtual circuit networks: Architecture and Layers of Frame Relay and ATM.

UNIT III NETWORK LAYER 

Logical addressing: IPv4, IPv6 addresses

Internet Protocol: Internetworking â€" IPv4, IPv6 - Address mapping â€" ARP, RARP,

BOOTP, DHCP, ICMP, IGMP, Delivery - Forwarding - Routing â€" Unicast, Multicast

routing protocols.

UNIT IV TRANSPORT LAYER 

Process-to-Process delivery - User Datagram Protocol (UDP) â€" Transmission Control

Protocol (TCP) â€" Congestion Control â€" Quality of services (QoS) â€" Techniques to

improve QoS.

UNIT V APPLICATION LAYER 

Domain Name System (DNS) â€" E-mail â€" FTP â€" WWW â€" HTTP â€" Multimedia Network

Security: Cryptography â€" Symmetric key and Public Key algorithms - Digital signature â€"

Management of Public keys â€" Communication Security â€" Authentication Protocols.