COMPUTER FUNDAMENTALS

COMPUTER NETWORKS AND COMMUNICATIONS

NETWORK SECURITY AND CYBERSECURITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The name by which a user is identified to a computer system or network. To access a computer protected by username and password, a user needs to enter the correct combination of username and password.
A
Trojan horse
B
user name
C
password
D
spam
Explanation: 

Detailed explanation-1: -A username is a name that identifies you on a website or server; generally, it is given to a user on a computer network or computer system that manages secure user accounts.

Detailed explanation-2: -Authentication is used by a client when the client needs to know that the server is system it claims to be. In authentication, the user or computer has to prove its identity to the server or client. Usually, authentication by a server entails the use of a user name and password.

Detailed explanation-3: -The username is an identifier: it tells the computer who you are. In contrast, a password is an authenticator: you use it to prove to the operating system that you are who you claim to be. A single person can have more than one Unix account on the same computer. In this case, each account would have its own username.

Detailed explanation-4: -Also known as knowledge-based authentication, password-based authentication relies on a username and password or PIN. The most common authentication method, anyone who has logged in to a computer knows how to use a password. Password-based authentication is the easiest authentication type for adversaries to abuse.

Detailed explanation-5: -Authentication is the process of validating the identity of a registered user or process before enabling access to protected networks and systems.

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