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EC-603 (A) RGPV B.Tech

DATA COMMUNICATION (DC)

Previous year papers and the official syllabus are free to read, no account needed.

Previous Year Papers

4 papers, latest Jun 2025

Free
See all 4 papers

Syllabus, notes and important questions for EC-603 (A)

Syllabus units

Topics as the official RGPV syllabus lists them.

Unit 1 Data Communication 16 topics
  • Introduction to Data Communication
  • Components of Data Communication
  • Data representation
  • Serial transmission
  • Parallel transmission
  • Modes of data transmission
  • Line Encoding: Unipolar
  • Line Encoding: Polar
  • Line Encoding: Bipolar
  • Networks – Protocols and standards
  • Standards organizations
  • Line configurations
  • Topology
  • Transmission mode
  • Categories of networks
  • Inter networks
Unit 1 notes
Unit 2 OSI model, Transmission media and Switching 10 topics
  • OSI model: Functions of the layers
  • Transmission media: Guided media
  • Transmission media: Unguided media
  • Transmission impairment
  • Performance
  • Switching
  • Circuit switching
  • Packet switching (virtual circuit approach)
  • Packet switching (datagram approach)
  • Message switching
Unit 2 notes
Unit 3 Error Control and Data Link Protocols 12 topics
  • Error detection and correction: Types of errors
  • Error detection and correction: Detection
  • Vertical Redundancy Check (VRC)
  • Longitudinal Redundancy Check (LRC)
  • Cyclic Redundancy Check (CRC)
  • Check sum
  • Error correction
  • Data Link Layer Protocols: Framing
  • Data Link Layer Protocols: HDLC
  • Data Link Layer Protocols: ARQ – Stop and Wait
  • Data Link Layer Protocols: ARQ – Sliding Window
  • Efficiency of data link protocols
Unit 3 notes
Unit 4 Networks 11 topics
  • LAN: Project 802
  • Ethernet
  • Token bus
  • Token ring
  • FDDI
  • MAN: IEEE 802.6 (DQDB)
  • MAN: SMDS
  • X.25
  • Frame Relay
  • ATM
  • SONET/SDH
Unit 4 notes
Unit 5 Networking Devices and TCP/IP Protocol Suite 8 topics
  • Networking and internetworking devices: Repeaters
  • Bridges
  • Gateways
  • Other devices
  • Routing algorithms
  • Distance vector routing
  • Link state routing
  • TCP/IP protocol suite: Overview of TCP/IP
Unit 5 notes
Read the full syllabus

Exam insights

Counted from 4 past EC-603 (A) papers.

Marks asked per paper, by unit

  • Unit 1 Data Communication: Introduction, Components, data representation 24 marks
  • Unit 2 OSI model: Functions of the layers 21 marks
  • Unit 3 ERROR CONTROL AND DATA LINK PROTOCOLS 21 marks
  • Unit 4 NETWORKS 21 marks
  • Unit 5 NETWORKING DEVICES AND TCP / IP PROTOCOL SUITE 21 marks

Average marks of the questions from each unit in one paper. You answer only some of them, so the total is more than the paper’s maximum.

Asked again and again

  1. Explain the OSI reference model with a neat diagram of the seven layers, describing the main function of each layer and how they interact to facilitate network communication.

    Asked 4 times: 2025, 2024, 2023, 2022

  2. Define transmission medium and explain the differences between guided media and unguided media.

    Asked 3 times: 2024, 2023, 2022

  3. Explain the structure and layers of the TCP/IP reference model / protocol suite with neat diagram.

    Asked 3 times: 2024, 2023, 2022

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