Which of the following is NOT commonly abbreviated as MAC?

Which of the following is NOT commonly abbreviated as MAC?

• Message Authentication Code
• Managed Architecture Cloud
• Media Access Control
• Mandatory Access Control 

EXPLANATION

Mandatory access control

In computer security, mandatory access control refers to a type of access control by which the operating system constrains the ability of a subject or initiator to access or generally perform some sort of operation on an object or target.

Message authentication code

In cryptography, a message authentication code, sometimes known as a tag, is a short piece of information used to authenticate a message—in other words, to confirm that the message came from the stated sender and has not been changed.

Media access control

In the IEEE 802 reference model of computer networking, the medium access control or media access control layer is the lower sublayer of the data link layer of the seven-layer OSI model.