Which of the following is used to restrict access according to user policies?

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Indicate whether the statement is true or false

Answer the following statements true (T) or false (F)

1. The approach taken by Kerberos is using authentication software tied to a secure authentication server. 2. The overall scheme of Kerberos is that of a trusted third-party authentication service. 3. Kerberos is designed to counter only one specific threat to the security of a client/server dialogue. 4. An obvious security risk is that of impersonation. 5. The authentication server shares a unique secret key with each server.