What form of authentication would you use for relatively unimportant resources? Justify your answer. What form of authentication would you recommend for your most sensitive resources?

What is host hardening? What are the three steps in hardening servers? What are the steps in hardening client PC's? What are group policy objects (GPO's)?

What is a cipher? Distinguish between symmetric key encryption and public key encryption for confidentiality. What kind of encryption for confidentiality is used in all common applications?