World of Computer Networking Your CCNA start - Round-trip Time (RTT) versus Ping

The video tutorial explains the concept of delay in data transmission, focusing on round trip time (RTT) and its importance in network performance. It introduces the ping utility for measuring RTT and provides an example calculation. The significance of RTT in real-time applications, such as voice or video calls, is highlighted. Finally, it guides viewers on how to measure RTT using a terminal.

What is the term used to describe the time taken for data to travel from one device to another and back?

• Latency

• Round Trip Time

• Throughput

• Bandwidth

Which utility is commonly used to measure the round trip time between a computer and a server?

• Traceroute

• Netstat

• Telnet

• Ping

In the given example, if the latency from a computer to a server is 25 milliseconds and back is 30 milliseconds, what is the RTT?

• 25 milliseconds

• 30 milliseconds

• 60 milliseconds

• 55 milliseconds

Why is a low round trip time important in real-time applications?

• To increase bandwidth

• To ensure faster data processing

• To avoid delays in communication

• To reduce data loss

What is considered an acceptable range for RTT in milliseconds for real-time applications?

• 50 to 100 milliseconds

• 200 to 300 milliseconds

• 10 to 50 milliseconds

• 100 to 200 milliseconds