In preparation to do a vulnerability scan against your company's systems.

In preparation to do a vulnerability scan against your company's systems. You've taken the steps below:

You've notified users that there will be a system test.

You've priontized and selected your targets and subnets.

You've configured the system to do a deep scan.

You have a member of your team on call to answer questions.

Which of the following is a necessary step to take prior to starting the scan?