CompTIA Network+ Practice Test 2026 – Comprehensive Exam Prep

As a signal travels from the sending device to the receiving device, it experiences attenuation, which refers to the loss of signal strength as it propagates over distance. This phenomenon occurs due to various factors, including resistance in the transmission medium, interference from external sources, and the physical limitations of the medium itself (such as cable or air).

The attenuation can vary depending on the type of medium used (e.g., copper cables, fiber optics, or wireless transmission) and the distance the signal must travel. As a result, the further the signal has to go, the weaker it typically becomes by the time it reaches the receiving device.

Understanding attenuation is crucial for network design and troubleshooting, as it affects overall performance and the quality of communication between devices. Network engineers need to consider attenuation when planning networks to ensure that signals can be effectively received and interpreted, and often use repeaters or amplifiers to mitigate its impact when necessary.