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Quiz: TCP vs UDP

5 questionsNo time limitPass: 60%+10 XP on first pass

How TCP guarantees delivery (handshake, sequence numbers, ACKs, retransmission, flow and congestion control), why UDP skips all that, and which apps use which.

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  1. Question 1

    What is the correct order of the TCP three-way handshake?

  2. Question 2

    Why do video calls usually use UDP?

  3. Question 3

    Which TCP feature prevents a fast sender from overwhelming a slow receiver?

  4. Question 4

    Which port does HTTPS use by default?

  5. Question 5

    Which protocol does DNS mainly use for normal queries?