Training an organization on possible phishing attacks would be included under which NIST Framework Core guidelines?

You work as a Network Administrator for Net Perfect Inc. The company has a Linux-based network. You have created a folder named Report. You have made David the owner of the folder. The members of a group named JAdmin can access the folder and have Read, Write, and Execute permissions. No other user can access the folder. You want to ensure that the members of the JAdmin group do not have Write permission on the folder. Also, you want other users to have Read permission on the Report folder.
Which of the following commands will you use to accomplish the task?

Which of the following works at the network layer and hides the local area network IP address and topology?

Which of the following tools is used to query the DNS servers to get detailed information about IP addresses, MX records, and NS servers?

Which of the following fields CANNOT be hashed by Authentication Header (AH) in transport mode?