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350-501 · Question #114
350-501 Question #114: Real Exam Question with Answer & Explanation
The correct answer is D: Router 1 accepts source addresses that have a match in the FIB that indicates it is reachable. Loose Mode only checks if there is any entry in the routing table for the source of that packet. os/security/configuration/guide/sec_nx-os-cfg/sec_urpf.html
Networking
Question
Refer to the exhibit. Router 1 was experiencing a DDoS attack that was traced to interface gjgabitethernet0/1. Which statement about this configuration is true?
Options
- ARouter 1 drops all traffic that ingresses interface gigabitethernet0/1 that has a FIB entry that exits
- BRouter 1 accepts source addresses on interface gigabitethemet0/1 that are private addresses
- CRouter 1 accepts all traffic that ingresses and egresses interface gigabitethernet0/1
- DRouter 1 accepts source addresses that have a match in the FIB that indicates it is reachable
Explanation
Loose Mode only checks if there is any entry in the routing table for the source of that packet. os/security/configuration/guide/sec_nx-os-cfg/sec_urpf.html
Topics
#uRPF#Network Security#DDoS Mitigation#Routing
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