CS602 Computer Networks Unit 5 notes and PYQ analysis for RGPV CSE 6th Semester. This unit covers Transport Layer, TCP, UDP, TCP Header, UDP Header, Flow Control, Congestion Control, DNS, FTP, SMTP, SNMP and Electronic Mail.
Unit 5 focuses on the Transport Layer and Application Layer protocols. It explains how TCP provides reliable communication, how UDP provides faster connectionless service, and how application protocols like DNS, FTP, SMTP and SNMP work.
Understand end-to-end communication, segmentation, reliability and port addressing.
Learn TCP header, UDP header, connection control, flow control and congestion control.
Study DNS, FTP, SMTP, SNMP, electronic mail and application layer services.
Complete syllabus-based topics of CS602 Computer Networks Unit 5.
Services, responsibilities, process-to-process delivery and port addressing.
TCP segment format, header fields, sequence number, acknowledgement and flags.
UDP datagram format, header fields, checksum and connectionless communication.
Sliding window, congestion window, slow start, congestion avoidance and control methods.
DNS, FTP, SMTP, HTTP and electronic mail services.
Simple Network Management Protocol, functions and network monitoring.
These questions are useful for 7 marks and 14 marks answers in RGPV exams.
RGPV B.Tech VI Semester Computer Networks previous year question analysis for Unit 5.
| Year | Question | Topic | Importance |
|---|---|---|---|
| June 2025 | A TCP machine is sending windows of 65535 B over a 1 Gbps channel that has a 10 msec one way delay. Find maximum throughput and line efficiency. | TCP Throughput Numerical | ★★★★ |
| June 2025 | Compare the TCP header and UDP header. List fields present in TCP header that are not part of UDP header with reason. | TCP vs UDP Header | ★★★★★ |
| June 2025 | Write short note on TCP Header Format and TCP Flow Control. | TCP Header / Flow Control | ★★★★★ |
| Dec 2024 | Draw and explain the header format of User Datagram Protocol. | UDP Header | ★★★★★ |
| Dec 2024 | Explain Simple Network Management Protocol and its functions. | SNMP | ★★★★ |
| May 2024 | Compare TCP header and UDP header. List fields in TCP header that are not part of UDP header. | TCP vs UDP Header | ★★★★★ |
| May 2024 | A TCP machine is sending windows of 65535 B over a 1 Gbps channel having 10 msec one way delay. Calculate throughput and line efficiency. | TCP Throughput Numerical | ★★★★ |
| May 2023 | What is Electronic Mailing? What are different ways of sending electronic mail? Discuss in detail. | Electronic Mail | ★★★★ |
| May 2023 | Discuss the concept of TCP flow control and TCP congestion control. | TCP Flow / Congestion Control | ★★★★★ |
| May 2022 | Explain connection establishment and connection release in Transport protocols. | TCP Connection Management | ★★★★ |
| Dec 2020 | Explain UDP packet format. | UDP Header | ★★★★★ |
| Dec 2020 | Write short note on TCP Header Format, FTP and ICMP. | TCP Header / FTP | ★★★★ |
| Topic | Asked Times | Years | Priority |
|---|---|---|---|
| TCP vs UDP Header | 3 Times | 2024, 2025 | ★★★★★ Extremely Important |
| UDP Header / UDP Packet Format | 3 Times | 2020, 2024, 2025 | ★★★★★ Extremely Important |
| TCP Header Format | 3 Times | 2020, 2025 | ★★★★★ Extremely Important |
| TCP Flow Control / Congestion Control | 2 Times | 2023, 2025 | ★★★★★ Extremely Important |
| TCP Throughput Numerical | 2 Times | 2024, 2025 | ★★★★ Very Important |
| SNMP | 1 Time | 2024 | ★★★★ Very Important |
| Electronic Mail | 1 Time | 2023 | ★★★ Important |
| FTP / DNS | Short Note | 2020, 2025 | ★★★ Important |
| Topic | Chance of Appearing |
|---|---|
| TCP vs UDP Header | 95% |
| TCP Header Format | 90% |
| UDP Header Format | 90% |
| TCP Flow Control | 85% |
| TCP Congestion Control | 85% |
| TCP Throughput Numerical | 80% |
| SNMP | 75% |
| DNS / FTP | 70% |
| Electronic Mail | 65% |
Agar time bahut kam hai, to TCP Header, UDP Header, TCP vs UDP aur TCP Flow Control strong kar lo. In topics se Unit 5 ka question attempt karne ka chance sabse zyada hai.
TCP/UDP header diagrams, comparison table, flow control, congestion control, connection management, throughput numerical aur application protocols sab prepare karo.
a) Compare TCP header and UDP header. List fields present in TCP header that are not present in UDP header.
b) Explain TCP flow control and TCP congestion control.
a) Draw and explain UDP header format.
b) Explain SNMP and DNS with suitable examples.
Add your PDF links below. Buttons are ready; only replace PDF file names if required.
It covers Transport Layer, TCP, UDP, TCP flow control, congestion control and application layer protocols.
TCP header, UDP header, TCP vs UDP and TCP flow control are the most important topics.
Yes, TCP throughput and line efficiency numerical has repeated in previous papers.