Implementing and Operating Cisco Enterprise Network Core Technologies (ENCOR) — Question 367

What is the calculation that is used to measure the radiated power of a signal after it has gone through the radio, antenna cable, and antenna?

Answer options

• A. mW
• B. ERIP
• C. dBm
• D. dBi

Correct answer: B

Explanation

The correct answer is B, ERIP, which stands for Effective Radiated Isotropic Power, and it accurately measures the total radiated power of a signal considering losses in the system. A, mW, represents milliwatts and is a unit of power but does not account for losses. C, dBm, refers to power level in decibels relative to 1 milliwatt, while D, dBi, indicates gain relative to an isotropic radiator, but neither directly measures total radiated power.