Larry and Fern both work in the data center. In order to enter the data center to begin their workday, they must both present their own keys (which are different) to the key reader, before the door to the data center opens.
Which security concept is being applied in this situation?

Carol is browsing the Web. Which of the following ports is she probably using?

In risk management concepts, a(n) _________ is something a security practitioner might need to protect.

Gary is unable to log in to the production environment. Gary tries three times and is then locked out of trying again for one hour. Why?

Jengi is setting up security for a home network. Jengi decides to configure MAC address filtering on the router, so that only specific devices will be allowed to join the network. This is an example of a(n)_______ control.