Interview Q&A / Computer Networks
Computer Networks interview questions
What happens when you open a website, TCP vs UDP, DNS and HTTP.
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- What are unicast, broadcast and multicast, and why can TCP not use the last two?
Unicast sends to one receiver, broadcast to every host on the local network, and multicast to a group that has joined. TCP needs a two-way connection with one peer, so it only supports unicast; broadcast and multicast use UDP.
IntermediateQuick answer1 min read