In the current network it has deployed other authentication system, device registration function by enabling a single point, reducing the user to re-enter the password.
What are correct about single sign-on statements? (Multiple choice)

• A.Although not require to enter a user password, but the authentication server needs to interact with the user password and devices used to ensure that certification through discussion
• B.AD domain single sign-on is only one deployment model
• C.AD domain single sign-on login can be mirrored data stream synchronized manner to the firewall
• D.device can identify the user through the authentication of the identity authentication system, user access, the device will not push authentication pages, to avoid further asked to enter a username / password

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The European TCSEC Code is dividedinto two modules, Function and Evaluation, which are mainly used in the miitary, government and commercial fields

• A.False
• B.True

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Which cf the following is correct about the description of SSL VPN?

• A.may IPencrypt layer
• B.No authentication required
• C.There is a NAT traversal problem
• D.Can be used without a client

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