After the foot printing tasks are completed, the attacker will have a good understanding about the security posture and very high-level network and server details

After the foot printing tasks are completed, the attacker will have a good understanding about the security posture and very high-level network and server details. The next step that the attacker will perform is to scan and enumerate the systems. To help understand what scanning and enumeration are, provide your responses to the following:

Describe the process of scanning and enumeration.

Describe how an intrusion detection system can be used to protect your organization against an attack.

Describe how the foot printing stages of an attack might not be detected by an IDS.

Take this opportunity to research and recommend at least 2 scanning and enumeration tools that your organization could use.

If desired, are there any tools that take scanning and enumeration to the next level and report vulnerabilities that could be recommended here for use?