In reality, installation is never easy, but some media are easier to install then others. In addition, some may require that the installer have special skills. A team of experienced administrators may be able to install twisted-pair, but fiber may require professional help. Capacity Capacity is another word for bandwidth . Most ethernet networks today are rated at 10Mbps, but newer designations allow 100Mbps.
High bandwidth is high capacity and low bandwidth is low capacity.
Attenuation Just as sound weakens over distance, so do electronic signals. Weakening of electronic signals during transmission is called attenuation . This means there are limits on the distance a signal can travel before it degrades to the point where it isn't usable. Part of attenuation is caused by interference from things like fluorescent lights and power lines. Electromagnetic Interference Interference affects the strength and integrity of electronic signals.