What does throughput measure in networking?

• A. The number of devices connected
• B. The speed of the internet connection
• C. The amount of data successfully transferred
• D. The latency of network signals

Answer: (C)

Throughput measures the amount of data that is successfully transferred over a network within a specific time frame. It is a critical metric because it reflects the actual performance of a network in terms of how much data can be sent and received between devices, which is essential for determining the efficiency and reliability of a network connection. High throughput indicates that a larger volume of data can be transmitted, which is vital for tasks such as streaming, gaming, or large file transfers.

When considering the other options, measuring the number of devices connected pertains to network capacity and performance metrics rather than throughput specifically. The speed of the internet connection often refers to bandwidth, which indicates the maximum potential data transfer rate but does not account for the efficiency of data delivery. Latency, on the other hand, describes the delay before a transfer of data begins following an instruction for its transfer, rather than the measurement of data actually being transferred. Thus, throughput strictly focuses on the amount of data that is successfully received or sent over that connection in practice.