Switch logs show thousands of failed login attempts against administrative interfaces in a short window. Which type of activity does this indicate and what is the primary control?
Answers
AA bandwidth exhaustion attack, mitigated by adding a second WAN link
BA DNS cache poisoning attempt, mitigated by flushing the cache
CA brute force password attack, mitigated by account lockout, strong authentication and restricting management access
DA routing loop, mitigated by enabling OSPF timers
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