Answer:
Using the DNS service.
Explanation:
The computer sends a UDP packet with the domain name in it to port 53 of the configured DNS server, and expects a reply with the IP address of that domain.
Answer:
To create a public key signature, you would use the <u>_private_</u> key.
Explanation:
To create a public key signature, a private key is essential to enable authorization.
A private key uses one key to make data unreadable by intruders and for the data to be accessed the same key would be needed to do so.
The login details and some important credentials to access user data contains both the user's public key data and private key data. Both private key and public key are two keys that work together to accomplish security goals.
The public key uses different keys to make data readable and unreadable.
The public key is important to verify authorization to access encrypted data by making sure the access authorization came from someone who has the private key. In other words, it's a system put in place to cross-check the holder of the private key by providing the public key of the encrypted data that needed to be accessed. Though, it depends on the key used to encrypt the data as data encrypted with a public key would require a private key for the data to be readable.
Answer: Absolute cell referencing
Explanation:
The absolute cell referencing is one of the type of cell reference address that basically contain the dollar sign in the spreadsheet applications. It is one of the important element as it helps in referring the constant values in the spreadsheet programs.
- The absolute cell referencing is copied and also moved from one cell to another in the new location.
- The size and also the shape are also remain constant in the spreadsheet.
According to the given question, the absolute cell referencing is also known as the relative cell referencing as they use the formulas for copied the values in the microsoft office excel for find out the data.
Therefore, Absolute cell referencing is the correct answer.
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.
