Question

In a network, If P is the only packet being transmitted and there was no earlier transmission, which of the following delays could be zero?

(a) Propagation delay

(b) Queuing delay

(c) Transmission delay

(d) Processing delay

This question was addressed to me in a job interview.

I'm obligated to ask this question of Delays and Loss topic in portion Security & Physical Layer of Computer Network

Answer 1

Right option is (b) Queuing delay

The best I can explain: Since there is no other packet to be transmitted, there is no need for a queue. Therefore, the delay caused due to the queuing would be none i.e. 0.