Interview Q&A / Computer Networks

INTERVIEW Q&A · 55 QUESTIONS

Computer Networks interview questions

What happens when you open a website, TCP vs UDP, DNS and HTTP.

  1. What is MTU, and what happens when a packet is bigger than it?

    MTU is the largest packet a link can carry; Ethernet's is usually 1500 bytes. IPv4 routers may split a bigger packet into fragments, or drop it and send an ICMP message if the Don't Fragment bit is set. IPv6 routers never fragment.

    IntermediateQuick answer1 min read