Chapter 16
1. B and D. Unicast Reverse Path Forwarding (uRPF) can help prevent IP spoofing attacks by checking the source IP address of received traffic and verifying that the traffic is arriving on the interface that would be used to send traffic to that IP address. ACLs can also be used to help prevent IP spoofing attacks by denying traffic coming in on an interface having a source address that lives off of a different interface. AAA is a technology that is used to authenticate users, authorize what they can do, and keep a log of what they did. However, AAA does not protect against IP spoofing attacks. CAR (Committed Access Rate) is a legacy quality of service (QoS) policing mechanism that does not protect against IP spoofing.
2. B. Hot Standby ...
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