If you are to determine the attack surface of an organization, which of the following is the BEST thing to do?

Emil uses nmap to scan two hosts using this command.
nmap -sS -T4 -O 192.168.99.1 192.168.99.7
He receives this output:


What is his conclusion?

Cross-site request forgery involves:

Bob received this text message on his mobile phone: "Hello, this is Scott Smelby from the Yahoo Bank. Kindly contact me for a vital transaction on: [email protected]". Which statement below is true?

On a Linux device, which of the following commands will start the Nessus client in the background so that the Nessus server can be configured?