How many phases does the Spiral model cycle through?

A company's asset management software has been discovering a weekly increase in non- standard software installed on end users' machines with duplicate license keys. The security analyst wants to know if any of this software is listening on any non-standard ports, such as 6667.
Which of the following tools should the analyst recommend to block any command and control traffic?

A security analyst has received reports of very slow, intermittent access to a public-facing corporate server. Suspecting the system may be compromised, the analyst runs the following commands:

Based on the output from the above commands, which of the following should the analyst do NEXT to further the investigation?

During routine monitoring, a security analyst discovers several suspicious websites that are communicating with a local host. The analyst queries for IP 192.168.50.2 for a 24-hour period:

To further investigate, the analyst should request PCAP for SRC 192.168.50.2 and __________.

The help desk noticed a security analyst that emails from a new email server are not being sent out. The new email server was recently added to the existing ones. The analyst runs the following command on the new server.

Given the output, which of the following should the security analyst check NEXT?