Cisco Exam Questions

Which configuration achieves this goal?

Refer to the exhibit.

XR4 must protect itself from a DOS attack against its BGP process from R1 by using the
TTL security feature. Which configuration achieves this goal?

A.
router bgp 100
neighbor 10.10.14.1 ttl-security

B.
router bgp 100
neighbor 10.10.14.1 ttl-security hops 1

C.
router bgp 100
neighbor 10.10.14.1 ttl-security hops 254

D.
router bgp 100
neighbor 10.10.14.1 ttl-security hops 255