What is a standard multimeter unable to measure?

A standard multimeter is primarily designed to measure three fundamental electrical parameters: voltage, current, and resistance. These capabilities make it a versatile tool for electrical troubleshooting and circuit analysis.

However, frequency measurement is not typically a standard feature of basic multimeters. While some advanced or specialized multimeters have the capability to measure frequency, the standard models do not include this function. Therefore, recognizing that frequency is outside the usual range of measurements for a standard multimeter highlights why it is the correct answer in this context.

Voltage, current, and resistance are the three basic metrics that multimeters are commonly used for, and thus they are well within the capabilities of an ordinary multimeter.