World of Computer Networking Your CCNA start - Throughput in Transmission Control Protocol/Internet Protocol (TCP/IP)

The video tutorial covers key network parameters such as bandwidth, throughput, and latency. It explains bandwidth as a physical layer parameter measured in bits per second, with examples of fiber and copper cables. Throughput is defined as the actual data transmitted over a link, and its calculation is detailed for different layers of the TCP model, considering additional headers. The tutorial also discusses throughput in network devices like switches, highlighting that real throughput is often lower than theoretical bandwidth. Finally, latency is introduced as another important network parameter.

What is the primary difference between fiber and copper cables in terms of data transmission?

• Fiber cables can transmit data faster than copper cables.

• Copper cables can transmit data faster than fiber cables.

• Both have the same data transmission speed.

• Copper cables are more reliable than fiber cables.

How is throughput different from bandwidth?

• Throughput is always higher than bandwidth.

• Throughput is the actual data transmitted, while bandwidth is the maximum possible data transmission rate.

• Bandwidth is the actual data transmitted, while throughput is the maximum possible data transmission rate.

• Throughput and bandwidth are the same.

What happens to data size as it moves from the application layer to the physical layer?

• It decreases due to compression.

• It remains the same.

• It decreases due to encryption.

• It increases due to additional headers.

In the example given, what is the throughput if 10 kilobytes of data is transmitted as 12 kilobytes?

• 100%

• 75%

• 83%

• 120%

Why can't a network switch with 24 ports each having 1 Gigabit per second bandwidth achieve 24 Gigabits per second throughput?

• Switches are limited by software constraints.

• Switches cannot handle full load on all ports simultaneously.

• Switches are limited by the type of cables used.

• Switches have a maximum throughput of 10 Gigabits per second.

How does throughput on the network layer compare to the application layer?

• Network layer throughput is lower than application layer.

• Both layers have the same throughput.

• Throughput is not measured on the network layer.

• Network layer throughput is higher than application layer.

What is latency in the context of network communication?

• The amount of data that can be transmitted over a network.

• The maximum data transfer rate of a network.

• The delay caused by network congestion.

• The time taken for data to travel from source to destination.