What are the four type of address in NAT？

【参考答案】

Inside local
Inside global
Outside local
Outside global

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单项选择题

An expanding company is deploying leased lines between its main site and two remote sites. The bandwidth of the leased lines is 128kb/s each， terminated on different serial interfaces on the main router. These links are used for combined VOIP and data traffic. The network administrator has implemented a VOIP solution to reduce costs， and has therefore reserved sufficient bandwidth in a low latency queue on each interface for the VOIP traffic. Users now complain about bad voice quality although no drops are observed in the low latency queue.What action will likely fix this problem？（）

A.mark VOIP traffic with IP precedence 6 and configure only ’fair-queue’ on the links
B.configure the scheduler allocate 3000 1000 command to allow the QoS code to have enough CPU cycles
C.enable class-based traffic shaping on the VoIP traffic class
D.enable Layer 2 fragmentation and interleaving on the links
E.enable Frame Relay on the links and send voice and data on different Frame Relay PVCs

问答题

What MSDP solution provides the abiltiy to place the same ip RP address on the loopback of two or more routers？

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.