Skip to content
GATEiit

GATE CSE 2026 Session 1 Q18: True statement about TCP connection setup and closing

Question

With respect to a TCP connection between a client and a server, which one of the following statements is true?

Try it: multiple choice: exactly one correct option

Select one option
Wrong answer costs 1/3 mark in GATE.
Show answer and explanation

Answer: D (official GATE 2026 final answer key)

Concept used: TCP uses a three-way handshake, is full-duplex, and either side (or both together) may send FIN.

First step: Recall TCP's simultaneous close: both ends can send FIN at the same time.

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 2026 Session 1 CS question paper and final answer key, organised by IIT Guwahati. Question paper · Answer key

More Computer Networks PYQs

PracticePractise Computer Networks questions →Full paperAll GATE CSE 2026 Session 1 questions →