单选题Two routers configured to run BGP have been connected to a firewall,one on the inside interface and one on the outside interface. BGP has been configured so the two routers should peer,including the correct BGP session endpoint addresses and the correct BGP session hop-count limit (EBGP multihop). What is a good first test to see if BGP will work across the firewall?()AAttempt to TELNET from the router connected to the inside of the firewall to the router connected to the outside of the firewall.If telnet works,BGP will work,since telnet and BGP both use TCP to transport dataBPing from the router connected to the inside interface of the firewall to the router connected to the outside interface of the firewall.If you can ping between them,BGP should work,since BGP uses IP to transport packetsCThere is no way to make BGP work across a firewall without special configuration,so there is no simple test that will show you if BGP will work or not,other than trying to start the peering sessionDThere is no way to make BGP work across a firewall

单选题
Two routers configured to run BGP have been connected to a firewall,one on the inside interface and one on the outside interface. BGP has been configured so the two routers should peer,including the correct BGP session endpoint addresses and the correct BGP session hop-count limit (EBGP multihop). What is a good first test to see if BGP will work across the firewall?()
A

Attempt to TELNET from the router connected to the inside of the firewall to the router connected to the outside of the firewall.If telnet works,BGP will work,since telnet and BGP both use TCP to transport data

B

Ping from the router connected to the inside interface of the firewall to the router connected to the outside interface of the firewall.If you can ping between them,BGP should work,since BGP uses IP to transport packets

C

There is no way to make BGP work across a firewall without special configuration,so there is no simple test that will show you if BGP will work or not,other than trying to start the peering session

D

There is no way to make BGP work across a firewall


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Routers A and B are connected with a point-to-point OC-3 interface. Each routers OC-3 interface is configured for both Level 1 and Level 2. The routers are configured in different areas. How many IS-IS adjacencies exist between the two routers?()A.0B.1C.2D.3

Refer to the exhibit. On the basis of the output, what two conclusions can be reached?() A. The default administrative distance has been changed.B. IS - IS is not enabled.C. Three physical interfaces are taking part in integrated IS - IS.D. IS - IS is not redistributing any oth er routing protocols.E. There are two neighboring routers sending IS - IS routing information.F. Address summarization is configured.

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单选题Two BGP peers connected through a routed firewall are unable to establish a peering relationship. What could be the most likely cause?()ABGP peers must be Layer 2-adjacent.BEBGP multihop is not configured.CThe firewall is not configured to allow IP protocol 89.DThe firewall is not configured to allow UDP 179.

单选题Refer to the exhibit. When running EIGRP, What is required for RouterA to exchange routing updates with RouterC?()AAs numbers must be changed to match on all the routers.BLoopback interface must be configured so a DR is elected.CThe no auto-summary command is needed on Router A and Router C.DRouter B needs to have two network statements, one for each connected network.

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单选题Which condition must be met to allow a PE router to forward VPN traffic across a LSP in a Layer 3 VPN environment?()AThe BGP next hop must be in inet.1.BThe BGP next hop must be in inet.3.CMust have a bidirectional LSP configured.DMust have a static route to allow an ARP for connected interfaces.

单选题Routers A and B are connected with a point-to-point OC-3 interface. Each router’s OC-3 interface is configured for both Level 1 and Level 2. The routers are configured in different areas.How many IS-IS adjacencies exist between the two routers?()A0B1C2D3

多选题In an environment in which multiple VLANs have been defined on Catalyst Express 500 switches, which two statements are correct for ports that have been configured with the Smartport role of "IP Phone + Desktop"?()AThe names of the VLANs used by the SmartPorts are case insensitiveBThe ports may belong to a configurable data VLANCThe names of the VLANs used by the Smartports are not relevantDThe ports may belong to many VLANs, depending on how many PCs are connected to each port.EThe names of the VLANs used by the Smartports are case sensitive

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单选题Two routers configured to run BGP have been connected to a firewall, one on the inside interface and one on the outside interface. BGP has been configured so the two routers should peer, including the correct BGP session endpoint addresses and the correct BGP session hop-count limit (EBGP multihop). What is a good first test to see if BGP will work across the firewall?()AAttempt to TELNET from the router connected to the inside of the firewall to the router connected to the outside of the firewall. If telnet works, BGP will work, since telnet and BGP both use TCP to transport data.BPing from the router connected to the inside interface of the firewall to the router connected to the outside interface of the firewall. If you can ping between them, BGP should work, since BGP uses IP to transport packets.CThere is no way to make BGP work across a firewall without special configuration, so there is no simple test that will show you if BGP will work or not, other than trying to start the peering session.DThere is no way to make BGP work across a firewall.