GATE 2015 CS (CS3) – Question 19

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

Consider: I TCP connections are full duplex. II TCP has no selective-acknowledgement option. III TCP connections are message streams. Which are correct?

I only
I and III only
II and III only
I,II and III

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Show answer and explanation

Correct answer: (A) I only

Explanation

TCP supports simultaneous data flow in both directions, so I is true. Selective acknowledgement is an available TCP option, making II false. TCP provides an ordered byte stream without preserving application message boundaries, so III is false. Thus A.

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