多项选择题
Which three best practices should be implemented at the campus backbone submodule to supportthe server farm module？ （）
A. Implement highly redundant switching and links with no single points or paths of failure.
B. Implement server load balancing.
C. Implement the Hot Standby Router Protocol （HSRP） for failover protection.
D. Implement intrusion detection with automatic notification of intrusion attempts in place.
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CiscoIDSsensorsformtheeyesandearsofyourCisconetworkintrusiondetection system. Placingsensorscorrectlythroughoutyournetworkiscrucialtosuccessfullyimplementingyour Ciscointrusiondetectionsystem.WhichtwoofthesearecharacteristicsofanIDSsensor？（）
A. has a permissive interface that is used to monitor networks
B. is an active device in the traffic path
C. passively listens to network traffic
D. has a promiscuous interface that is used to monitor the network -
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D. digitized sampling
