Which of the Following File Transfer Protocol (FTP) Ports Is

question 3

Multiple Choice

Which of the following File Transfer Protocol (FTP) ports is used to communicate over a network?

• A)Port 20
• B)Port 21
• C)Port 18
• D)Port 35

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Definitions:

Wavelength

Wavelength is the distance between consecutive crests of a wave, especially points in a sound wave or electromagnetic wave.

Frequency

The quantity of times a cyclic event happens in a given time period, typically referred to in situations involving waves or oscillations.

Nanometers

A unit of length in the metric system, equal to one billionth of a meter, commonly used to measure wavelengths of light and the size of biological and chemical structures at the molecular level.

Wavelength

The distance between successive crests of a wave, specifically in physics, the distance between identical points in adjacent cycles of a wave.