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350-060 · Question #120
350-060 Question #120: Real Exam Question with Answer & Explanation
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Question
An ISP is concerned about DoS attacks that tend to starve out legitimate flows by generating malicious traffic. A number of techniques are being considered for the network edge. What are three correct statements regarding preventive measures against DoS attacks? (Choose three.)
Options
- AImplement ACLs because the filtering performance of routers is usually higher than their forwarding
- BImplement uRPF strict mode because it works well in service provider environments, especially with
- CBGP Remote-Triggered Black Hole (RTBH) can be implemented by inducing a discard route for the
- DBGP Remote-Triggered Black Hole (RTBH) and uRPF loose mode can be configured to collaborate
- EImplement strict QoS policers at the network edge for malicious flows where a classification ACL can
- FImplement control plane policing.
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