Question 4 (4 points) Another way to measure end-to-end network latency is to use the round- trip time (RTT). (a) What is the RTT? Use a time diagram to illustrate your explanation. (b) What is the one-way trip time? Illustrate your answer with a time diagram. Question 4 (4 points) Another way to measure end-to-end network latency is to use the round- trip time (RTT). (a) What is the RTT? Use a time diagram to illustrate your explanation. (b) What is the one-way trip time? Illustrate your answer with a time diagram