试题详情
- 单项选择题A request arrived on your MPLS-vpn-bgp group. Due to a security breach， your customer is experiencing DoS attacks coming from specific subnets （200.0.10.0/24， 200.0.12.0/24）. You have checked all MPLS-EBGP routes being advertised to BHK from other VPN sites and found four subnets listed： 200.0.10.0/24， 200.0.11.0/24， 200.0.12.0/24， 200.0.13.0/24. You immediately apply an outbound ACL filter using the appropriate MPLS-EBGP tool： access-list 1 deny 0.0.0.0 255.255.254.255 access-list 1 permit any What happens when you apply this ACL on the MPLS-EBGP connection to BHK？（）
A、It blocks all routes.
B、It blocks the routes 200.0.12.0/24， 200.0.10.0/24 only.
C、It blocks the routes 200.0.12.0/24， 200.0.13.0/24 only.
D、It blocks the routes 200.0.10.0/24， 200.0.13.0/24 only.
E、Nothing happens， no routes are blocked.
- B
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