You Are Dropping Your Friend Back Home After a Night

question 6

Multiple Choice

You are dropping your friend back home after a night at the movies.From the car,she turns on the indoor lights in her home using an app on her phone.How is your friend able to do this?

• A) She uses a hub at her home that she connects to through the app.
• B) She has installed switches that interact with the installed app on her phone.
• C) She has a home network with smart home devices.
• D) She dialed into her home modem through the app and sent a command through the router.

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Definitions:

Terminals

The end points of an electrical device or a cable where connections are made to enable the flow of electrical current.

Diode

A semiconductor device that allows current to flow in one direction only, used in electronics for rectification and signaling.

Relay

Any of a number of devices that receives a signal and then effects an action. In vehicle electrical circuits, relays are used to allow a small current circuit to control a large current circuit such as in a starter relay. Also known as a pilot.

Transistor

A semiconductor device used to amplify or switch electronic signals and electrical power, fundamental in modern electronic circuits.