Computer Science Homework Help

I’m studying for my Cyber Security class and need an explanation.

• List and briefly define three classes of intruders.
•  What are two common techniques used to protect a password file?
•  What are three benefits that can be provided by an intrusion detection system?
•  What is the difference between statistical anomaly detection and rule-based intrusion detection?
•  What metrics are useful for profile-based intrusion detection?
•   What is the difference between rule-based anomaly detection and rule-based penetration identification?
•  What is a honeypot?
•  What is a salt in the context of UNIX password management?
•  List and briefly define four techniques used to avoid guessable passwords.