Question

To safeguard data against security threats, every information system today requires a user name and a password. In this case, which of the following functions is performed by the user name?

A) authentication
B) identification
C) decryption
D) encryption

Answer 1

The user name primarily serves the function of identification in the context of safeguarding data. Option B is the answer.

Step-by-step explanation:

In the realm of information security, user authentication involves verifying the identity of a user or system to grant access. Identification is the process of presenting an identity (in this case, the user name), and authentication is the subsequent verification of that identity.

The user name, serving as a unique identifier, helps the system recognize and associate a particular individual or entity. While encryption and decryption are mechanisms for securing data during transmission or storage, in this scenario, the primary role of the user name is to aid in identifying users.

Therefore, Option B (identification) is the correct answer.