Authentication protocols are usually designed and configured to create a number that will be used only once, so as to prevent replay attacks in a computer network. Thus, this number is called a <u>nonce</u>.
Authentication work based on the principle of strategically matching an incoming request from an end user or electronic device to a set of uniquely defined credentials.
In an access control list (ACL), authentication and authorization is used to ensure an end user is truly who he or she claims to be, as well as confirming that an electronic device is valid through the process of verification.
In Cybersecurity, authentication protocols are usually designed and configured to create a nonce, which can be used only once, so as to prevent replay attacks in a computer network.
In conclusion, a nonce is used prevent replay attacks in a computer network because the number created by an authentication protocol can be used only once.
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Answer:
The user's account is blocked due to several unsuccessful login attempts.
Explanation:
Any device having a password security has a property of blocking the account or device in use after noticing several unsuccessful attempts of login.
So as a precautionary measure when the software notices such activity it blocks the access to that account so that any intruder might not be able to enter the account premises.
Same is the case with the employee who was trying to access his own account but due the expired password he made several attempts but couldn't log in. The software took it as an intruder and blocked the account.
The employee after requesting for password reset again tried to login but the account was blocked so he could not be able to access it again.
Normally, you might expect that anything related to Sodium and Chlorine is insanely dangerous and shares properties of both(B), but since the two are making a compound, that is not true. Compounds almost never share the properties of the elements they are made from. So your answer is D.
The statements that is true regarding mainframe computers is that:
- Mainframes are fast-performing computers that have large storage capacities.
<h3>Is mainframe computers are very large computers?</h3>
A mainframe computer is known to be large. Mainframe computers are known to be quite faster and have a lot of storage capacity when compared to traditional server computers.
Note that A mainframe computer is seen as a server that can be able to contain thousands of client computers linked to it. Mainframes are said to be used by large companies that needs high-volume transaction processing and storage.
Hence, The statements that is true regarding mainframe computers is that:
- Mainframes are fast-performing computers that have large storage capacities.
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