Refer to the exhibit. R1 is connected to two service providers and is under a DDoS attack. Which statement about this design is true if URPF in strict mode is configured on both interfaces?
A.
R1 drops all traffic that ingresses either interface that has a FIB entry that exits a different interface.
B.
R1 drops destination addresses that are routed to a null interface on the router.
C.
R1 permits asymmetric routing as long as the AS-PATH attribute entry matches the connected AS.
D.
R1 accepts source addresses on interface gigabitethernet0/1 that are private addresses.
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insence
9 months, 4 weeks ago