Skip to content
GATEiit

GATE CSE 2024 Session 1 Q29: Sequence and acknowledgement numbers in a TCP handshake

Question

TCP client P successfully establishes a connection to TCP server Q. Let NPN_P denote the sequence number in the SYN sent from P to Q. Let NQN_Q denote the acknowledgement number in the SYN ACK from Q to P. Which of the following statements is/are CORRECT?

Try it: multiple select: one or more correct options

Select one or more options
Select all correct options. No negative marking, no partial marks.
Show answer and explanation

Answer: A, D (official GATE 2024 final answer key)

Concept used: TCP uses a random initial sequence number, and a SYN consumes one sequence number.

First step: The ACK number is the next byte expected; the SYN counts as one byte.

Full step-by-step solution

Detailed working, common mistakes and linked mock tests will be available with a free GATEiit account. Log-in is coming soon.

Share this question

WhatsAppDownload image

Source: official GATE 2024 Session 1 CS question paper and final answer key, organised by IISc Bangalore. Question paper · Answer key

More Computer Networks PYQs

PracticePractise Computer Networks questions →Full paperAll GATE CSE 2024 Session 1 questions →