Automatic, three speed transmission
Answer:
a) true.
Explanation:
Encryption is a form of cryptography and typically involves the process of converting or encoding informations in plaintext into a code, known as a ciphertext. Once, an information or data has been encrypted it can only be accessed and deciphered by an authorized user.
Some examples of encryption algorithms are 3DES, AES, RC4, RC5, and RSA.
On the other hand, authentication can be defined as the process of verifying the identity of an individual or electronic device. Authentication work based on the principle of matching an incoming request from a user or electronic device to a set of uniquely defined credentials.
Basically, authentication ensures a user is truly who he or she claims to be, as well as confirm that an electronic device is valid through the process of verification.
Digital certificates, smart cards, picture passwords, and biometrics are used to perform an authentication.
<em>Hence, in cybersecurity the use of encryption and authentication protocols is the standard method of countering attempts to alter or insert transmissions. </em>
The $ sign denotes a row or a column as absolute. Since the rows are numbers (columns are letters), you're looking for an answer with a $ sign in front of a number.
That's answer D I would say.
A field identified in a record as holding the unique identifier for that record is called the; key field
<h3>What is a key field in computer?</h3>
A field in computer is a record that holds unique data which identifies that record from all the other records in the file or database
Finally, the correct answer is a key field because it is a field in a record of a data table that contains unique data and separates that record from all other records in the database.
Typical key fields include account number, product code and customer name.
Read more about key field at; brainly.com/question/14577288
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