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Which one of the following technologies can be used to mitigate the effects of a denial of service attack on a local area network?
A. Split horizon
B. Flood guard
C. Loop prevention
D. Hold-down timers
Correct Answer: B
Flood guard prevents a single device from flooding the network with traffic, which may cause a denial of service. Loop prevention, hold-down timers, and split horizon routing are all used to detect and correct routing loops.