Which term refers to the range between the highest and lowest transmittable frequencies?

The term that refers to the range between the highest and lowest transmittable frequencies is bandwidth. In telecommunications and networking, bandwidth is a crucial concept, as it defines the capacity of a communication channel to transmit data. It is measured in hertz (Hz) and indicates how much data can be sent over a network in a given amount of time. A wider bandwidth allows for greater data transfer rates, which is essential for activities that require high-speed internet or data communication, such as streaming video or large file transfers.

In contrast, availability pertains to the reliability and uptime of a system or service, typically focusing on whether users can access resources when needed. Attack vector refers to the method or pathway by which an attacker gains access to a computer or network to exploit vulnerabilities. A backdoor is a secret method of bypassing normal authentication or security processes to gain access to a system. Each of these terms has its specific application in the field of cybersecurity, but they do not relate to the frequency range associated with bandwidth.