If userA wants to send a secure message to userB using an asymmetric cryptographic algorithm, which key does userB use to decrypt the message? a. UserB’s public key b. UserA’s private key c. UserA’s public key d.

You sign in to your personal computer with your Microsoft account and then you want to set up your computer as a trusted device to make changes to the account settings. Microsoft sends a code to your cell phone in a text message. You enter the code on a Windows screen. This type of authentication is called: a. Multifactor authentication b. Mutual authentication c. Biometric authentication d. None of the above