1) This will attempt to prevent malicious traffic entering the network. a) Firewall b) Captcha c) Encryption d) Authentication 2) these are the little boxes that appear on the screen to prove you are not a robot. They include tests such as 'select all the images of cars a) Firewall b) Captcha c) Encryption d) Authentication 3) is the process of encoding data or a message so that it cannot be understood by anyone other than its intended recipient a) Firewall b) Captcha c) Encryption d) Authentication 4) is the process of a user confirming that they are who they say they are on a computer system. In a network, this is often done through inputting a username and password a) Firewall b) Captcha c) Encryption d) Authentication

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