GATE 2013 CS (CS1) – Question 22

Computer Networks · TCP: Flow Control, Congestion Control, Socket API · 1 mark · Multiple choice

Which transport protocols are used respectively for real-time multimedia, file transfer, DNS and email?

TCP,UDP,UDP,TCP
UDP,TCP,TCP,UDP
UDP,TCP,UDP,TCP
TCP,UDP,TCP,UDP

Practise this question in The GATE Grind →

Show answer and explanation

Correct answer: (C) UDP,TCP,UDP,TCP

Explanation

The historical defaults are UDP for real-time media, reliable TCP for file transfer, UDP for ordinary DNS queries, and TCP for mail. This sequence is C. DNS can also use TCP, but the question asks the conventional protocol mapping.

More TCP: Flow Control, Congestion Control, Socket API questions

GATE 2015 CS (CS2) Q33 – In which order does a UNIX socket server invoke accept, bind, listen and recv?
GATE 2015 CS (CS2) Q38 – A TCP connection has bandwidth 1048560 bits/s. Let α be the RTT in milliseconds, rounded…
GATE 2015 CS (CS3) Q19 – Consider: I TCP connections are full duplex. II TCP has no selective-acknowledgement…
GATE 2021 CS (CS2) Q17 – P and Q choose initial TCP sequence numbers X and Y. P sends SYN=1,SEQ=X,ACK=0 to request…
GATE 2026 CS (CS1) Q18 – With respect to a TCP connection between a client and a server, which one of the following…
GATE 2026 CS (CS1) Q44 – A TCP sender successfully establishes a connection with a TCP receiver and starts the…

All TCP: Flow Control, Congestion Control, Socket API questions →