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2 years ago

Information technology is the study of managing, processing, and retrieving information.

Computers and Technology

1 answer:

arlik [135]2 years ago

3 0

A. true
Information Technology deals with information in relation to technology i.e. Management, processing, retrieval.

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Microsoft® Publisher does which of the following?

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Creates items using page layout skills

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Microwave transmits information between network nodes using

tekilochka [14]

Answer:

Towers and satellite.

Explanation:

Electromagnetic waves is a propagating medium used in all communications device to transmit data (messages) from the device of the sender to the device of the receiver.

Generally, the most commonly used electromagnetic wave technology in telecommunications is radio waves.

Radio waves can be defined as an electromagnetic wave that has its frequency ranging from 30 GHz to 300 GHz and its wavelength between 1mm and 3000m. Therefore, radio waves are a series of repetitive valleys and peaks that are typically characterized of having the longest wavelength in the electromagnetic spectrum.

Basically, as a result of radio waves having long wavelengths, they are mainly used in long-distance communications such as the carriage and transmission of data.

The distance from one peak to the next peak is called wavelength. This distance is also equal to the distance from one trough of a wave to another.

Also, microwave is a form of radio waves which typically has short wavelengths and frequency ranging from 300 MHz and 300 GHz.

Hence, microwave transmits information between network nodes using towers and satellite.

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Over the last ten years, what has caused the audience ratio of three major networks, CBS, NBC, and ABC from 90 percent to 60 per

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D is your answer good luck

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3 years ago

Host B on subnet Teachers transmits a packet to host D on subnet Students. Which Layer 2 and Layer 3 addresses are contained in

mr Goodwill [35]

Answer:

Layer 2 destination address = 00-00-0c-94-36-ab

Layer 2 source address = 00-00-0c-94-36-bb

Layer 3 destination address = 172.16.20.200

Layer 3 source address = 172.16.10.200

Explanation:

To properly understand the given answer, let us define some terms used in the narrative of the question:

Subnet: The sub network or as popularly called subnet is a logical division of the internet protocol of a network into many different and smaller network. It is typically used to create partitions or subdivisions of large networks into bits.

PDU: The PDU can be said to be an abbreviation for the word power distribution unit or protocol data unit. It can also be refereed to as an IT device that possess many output ports or terminals. They are mostly used to distribute or transmit power or data to other operating devices with the telecommunication system.

Now referring back to the question asked and the image attached below, we can see that host a and b send their signal through subnet teachers while host c and d send their signal through subnet students thus,

Layer 2 destination address = 00-00-0c-94-36-ab

Layer 2 source address = 00-00-0c-94-36-bb

Layer 3 destination address = 172.16.20.200

Layer 3 source address = 172.16.10.200 are the correct destination.

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3 years ago