IT-502 RGPV B.Tech
Computer Networks (CN)
Previous year papers and the official syllabus are free to read, no account needed.
Previous Year Papers
5 papers, latest Dec 2025
- IT-502 paper, Dec 2025
- IT-502 paper, Jun 2025
- IT-502 paper, Dec 2024
- IT-502 paper, Nov 2023
- IT-502 paper, Nov 2022
Syllabus, notes and important questions for IT-502
Syllabus units
Topics as the official RGPV syllabus lists them.
Unit 1 Unit I 13 topics
- Importance of computer networks
- Broadcast and point to point networks
- Local area networks and Wide area networks
- ISO-OSI reference model
- TCP/IP model
- Interfaces and services
- Protocol data unit
- Connection oriented services
- Connectionless services
- Service primitives
- Binding Protocol Address - ARP & RARP
- Packet format
- Encapsulation
Unit 2 Unit II 19 topics
- Data link layer design issues
- Framing
- Flow & error control
- Physical addressing
- Stop & Wait protocol
- Go back N ARQ
- Selective repeat ARQ
- Piggybacking and pipelining
- HDLC LAN Protocol stack - Logical link control and Media Access Control sublayer
- IEEE 802.2 LLC Frame format
- MAC layer protocols - static and dynamic allocation
- Pure and slotted ALOHA
- Carrier sense multiple access
- Persistent CSMA
- Non‑persistent CSMA
- IEEE 802.3
- IEEE 802.4
- IEEE 802.5
- FDDI
Unit 3 Unit III 23 topics
- Logical addressing
- Classful addressing
- Classless addressing
- Packet delivery & forwarding
- Unicast routing protocols
- Multicast routing protocols
- Routing algorithm - Least Cost
- Dijkstra's algorithm
- Bellman‑Ford algorithm
- Introduction to Internet protocol
- IPv4 header
- IPv4 datagrams
- Encapsulation
- Fragmentation and reassembly
- IP routing
- Subnet addressing
- Subnet mask
- Supernetting (special case of IP addresses)
- IPv6 motivation
- IPv6 frame format and addressing
- ICMP introduction
- ICMP header
- ICMP message types
Unit 4 Unit IV 22 topics
- TCP introduction
- Transport services
- Process‑to‑process delivery
- TCP congestion control algorithms
- Quality of service
- TCP headers
- Connection establishment and termination
- Timeout of connection establishment
- Maximum segment size
- Port numbers and socket addresses
- TCP timers
- UDP introduction
- UDP header
- UDP checksum
- UDP operations
- Encapsulation & decapsulation
- Queuing
- SCTP services
- SCTP transmission sequence number
- SCTP stream identifier
- SCTP stream sequence number
- SCTP packet format
Unit 5 Unit V 20 topics
- BOOTP operation
- BOOTP packet format
- DHCP address allocation
- DHCP configuration
- DHCP packet format
- DNS distribution of name spaces
- DNS in the Internet
- FTP connection
- FTP communication
- FTP command processing
- TFTP
- E‑Mail SMTP
- E‑Mail POP
- E‑Mail IMAP
- SNMP
- Study of internetworking devices and their configuration – switches
- Hubs
- Bridges
- Routers
- Gateways
Exam insights
Counted from 5 past IT-502 papers.
Marks asked per paper, by unit
-
Unit 1 Importance of computer networks 22 marks
-
Unit 2 Data-Link layer 25 marks
-
Unit 3 The Network layer 21 marks
-
Unit 4 Transport layer 22 marks
-
Unit 5 Application layer 20 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
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Explain the IPv4 header / datagram format and the importance of each field.
Asked 3 times: 2025, 2023, 2020
-
Describe the TCP/IP reference model and compare/differentiate it with the ISO-OSI model.
Asked 2 times: 2025, 2024
-
Define PAN, LAN, WAN (and internetwork) and compare them in terms of coverage area, speed and applications.
Asked 2 times: 2025, 2023