更多"Router R1, in ASN 11, learns a BGP "的相关试题:
[单项选择] Router R1 learns two routes with BGP for prefix 200.1.0.0/16. Comparing the two routes, route 1 has a longer AS_Path Length, bigger MED, bigger Weight, and smaller Loca l PreferencE. Which of the following is true about Router R1's choice of best path for this prefix?（）
A. Route 1 is the best route.
B. Route 2 is the best route.
C. The routes tie as best, but one will be picked to be placed in the routing table based on tiebreakers.
D. Neither route is considered best.
[单项选择]A router learns about a remote network from EIGRP, OSPF, and a static route. Assuming all routing protocols are using their default administrative distance, which route will the router use to forward data to the remote network（）。
A. The router will use the static route.
B. The router will use the OSPF route.
C. The router will use the EIGRP route.
D. The router will load balance and use all three routes.
[单项选择]You have received a default route through BGP from your ISP and you want to redistribute it into OSPF.Which mehtod will accomplish this?（）
A. Apply an export policy to OSPF that exports the default route
B. Apply an import policy to OSPF that imports the default route
C. Apply the default-network command to OSPF
D. Apply the redistribute-igp command to BGP
[单项选择] BGP route dampening is configured on a BGP router. Whose routing behavior is affected by this configuration?（）
A. upstream EBGP neighbors
B. downstream EBGP neighbors
C. upstream IBGP neighbors learned by IBGP peers
D. downstream IBGP neighbors learned by IBGP peers
[单项选择] R1 in ASN 1 with loopback1 address 1.1.1.1 needs to be configured with an iBGP connection to R2 with loopback2 IP address 2.2.2.2. The connection should use the loopbacks. Which o f the following commands is required on R1?（）
A. neighbor 1.1.1.1 remote- as 1
B. neighbor 2.2.2.2 remote- as 2
C. neighbor 2.2.2.2 update - source loopback1
D. neighbor 2.2.2.2 ibgp -multihop 2
E. neighbor 2.2.2.2 ibgp - mode
[单项选择]PassGuide has a BGP network and a BGP route of 197.22.129.0/24 that should be propagated to all of the devices. The route is currently not in any of the routing tables. The PassGuide administrator determines that an access list is the cause of the problem. The administrator changes the access list to allow this route, but the route still doesnot appear in any of the routing tables. What should be done to propagate this route（）
A. Use the service-policy command to adjust the QOS policy to allow the route to propagate.
B. Clear the BGP session.
C. Use the release BGP routing command.
D. Change both the inbound and outbound policy related to this route.
E. None of the other alternatives apply
[单项选择]Which statement describes the purpose of BGP route damping?（）
A. Avoid interface bandwidth saturation.
B. Drop BGP routes when the routing-table becomes full.
C. Remove unnecessary route attributes when not in use.
D. Limit the effects of a flaping interface on route removal and readvertisement.
[多项选择]Which two BGP attributes support route reflection?（）
A. Client ID
B. Cluster list
C. Originator ID
D. Reflection community
[单项选择]What does a BGP route reflector do when reflecting a route?（）
A. It prepends its cluster identifier to the route's cluster list.
B. It prepends its own originator identifier to the route's cluster list.
C. It replaces the route's cluster identifier with its own cluster identifier.
D. It replaces the route's originator identifier with its originator identifier.
[多项选择] Enterprise Router R1, in ASN 1, connects to ISP Router I1, ASN 2, using eBGP. The single serial link b etween the two routers uses IP addresses 10.1.1.1 and 10.1.1.2, respectively. Both routers use their S0/0 interfaces for this link. Which of the following commands would be needed on R1 to configure eBGP?（）
A. router bgp 2
B. router bgp 1
C. neighbor 10.1 .1.2 remote - as 2
D. neighbor 10.1.1.2 Update - source 10.1.1.1
E. neighbor 10.1.1.2 Update- source S0/0
[单项选择]Which BGP route selection criterion is superior?（）
A. lowest MED
B. highest weight
C. lowest local preference
D. highest local preference
[多项选择]What are two advantages of BGP route aggregation?（） (Choose two.)
A. It can reduce routing table size.
B. It allows for optimal route selection.
C. It can reduce the number of routing updates.
D. It always shortens the attribute list for the aggregated route.
[单项选择]What is the first step in BGP route selection?（）
A. The local router prefers the route with the shortest as-path.
B. The router first verifies that it has a route to the bgp Next Hop IP address.
C. The local router prefers the route from the peer with the lowest peer id address.
D. The local router prefers the route learned from an ebgp peer over a route learned from an ibgp peer.
[单项选择] Router R1 has a connected route for 10.1.1.0/24 off interface Fa0/0. Interface Fa0/0 has been enabled for OSPF due to a router ospf 1 and network 10.0.0.0 0.0.0.255 area 0 command. R1 also has EIGRP configured, with the redistribute ospf 1 metric 1000 100 10 1 1500 command configured under EIGRP. Which one of the following is true?（）
A. R1 will not redistribute 10.1.1.0/24 into EIGRP, because R1 knows it as a connected route and not as an OSPF route.
B. For any OS PF routes redistributed into EIGRP, the metric components includea value equivalent to 1 Mbps of bandwidth.
C. For any OSPF routes redistributed into EIGRP, the metric components include a value equivalent to 100 microseconds of delay.
D. No subnets of network 10.0.0.0 will be redistributed due to the omission of the subnets parameter.
