What Is Wireless Fidelity

question 18

Multiple Choice

What is wireless fidelity?

• A) A means of linking computers using infrared or radio signals
• B) An omnidirectional wireless technology that provides limited-range voice and data transmission over the unlicensed 2.4-GHz frequency band, allowing connections with a wide variety of fixed and portable devices that normally would have to be cabled together
• C) A technology that uses active or passive tags in the form of chips or smart labels that can store unique identifiers and relay this information to electronic readers
• D) Commonly used to transmit network signals over great distances

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Definitions:

Coverslip

A thin piece of glass or plastic placed over specimens on a microscope slide, holding the specimen in place and providing a clear viewing surface.

Magnification

The process of enlarging the appearance of an object through optical instruments such as microscopes.

Immersion Oil

A type of oil used to increase the resolution of a microscope by minimizing refraction of light.

Aperture

An opening, hole, or gap, which in optics refers to the opening through which light enters a camera or microscope.