What are the 6 core concepts in IT security?

A.
Server management, website domains, firewalls, IDS, IPS, and auditing

B.
Authentication, authorization, confidentiality, integrity, availability, and non-repudiation

C.
Passwords, logins, access controls, restricted domains, configurations, and tunnels

D.
Biometrics, cloud security, social engineering, DoS attack, viruses, and Trojans