Chapter 7
1. A. Extranet VPNs connect sites in different but cooperating companies. Remote-access VPNs provide access to individual users, usually from home or while traveling. The term enterprise VPN is not generally used to describe a type of VPN.
2. C. Antivirus software is an important security function, but it is not a function provided by the VPN itself.
3. B. IPsec provides confidentiality, data integrity, authentication, and anti-replay. Intrusion prevention generally refers to a security function in a network in which a device watches all flows in the network, watching for combinations of packet content that is true of known viruses, and then trying to prevent those viruses from propagating into the network.
4. B. The tunnel source ...
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