: Determines the maximum data rate for a noisy channel.
: Discussion on network hardware (bridges, repeaters, hubs), error detection (CRC, Hamming code), and flow control.
Transmission media act as the physical pathway for signals. They fall into two primary categories: guided and unguided. Guided Media (Wired)
This paper focuses on the and Data Transmission —core topics highlighted in Katre's curriculum-aligned chapters.
: The 4-layer functional model used for the modern Internet. Network Types : Classified by scale as (Local Area Network), (Metropolitan Area Network), and (Wide Area Network). Government College of Engineering, Kalahandi, Bhawanipatna 3. Physical Layer & Data Transmission This section covers the physical "wires" and signals. Malla Reddy College of Engineering and Technology Data Communication And Computer Network - Amazon.in
Data can be transferred via alternate paths if one node fails (as seen in mesh topologies).
Every data communication system relies on five basic elements to function successfully:
Breaks messages into discrete packets that travel independently across the network based on real-time routing paths. Packets can arrive out of order and are reassembled at the destination, optimizing network efficiency for data communications. 6. Crucial Protocols and Standards
: Two-way communication but not simultaneously (e.g., walkie-talkies).