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单选题
When learning a new route, if a LSA received is not found in the topological database, what will an internal OSPF router do?（）
A
The sequence numbers are checked, and if the LSA is val id it is entered into the topology database.
B
The LSA is placed in the topological database and an acknowledgement is sent to the transmitting router.
C
The LSA is dropped and a message is sent to the transmitting router.
D
The LSA is flooded imme diately out of all the OSPF interfaces, except the interface from which the LSA was received.
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更多 “单选题When learning a new route, if a LSA received is not found in the topological database, what will an internal OSPF router do?（）A The sequence numbers are checked, and if the LSA is val id it is entered into the topology database.B The LSA is placed in the topological database and an acknowledgement is sent to the transmitting router.C The LSA is dropped and a message is sent to the transmitting router.D The LSA is flooded imme diately out of all the OSPF interfaces, except the interface from which the LSA was received.” 相关考题
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单选题Which OSPF LSA type does an ASBR use to originate a default route into an area？ （）A
LSA 1B
LSA 3C
LSA 4D
LSA 5E
LSA 7
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考题
单选题A router has EIGRP configured as the only routing protocol. How does EIGRP respond if there is no feasible successor route to a destination network and the successor route fails?（）A
It immediately sends its entire routing table to its neighbors.B
EIGRP sends a Hello packet to the DR to inform it of the route failure.C
It automatically forwards traffic to a fallback default route until a successor route is found.D
It sends queries out to neighbors until a new successor route is found.E
It places the route in holddown until LSA updates inform it of a new route to the network.
考题
单选题Which types of prefixes will a router running BGP most likely advertise to an IBGP peer， assuming it is not configured as a route reflector？（）A
prefixes received from any other BGP peer and prefixes locally originated via networkstatements or redistributedB
all prefixes in its routing tableC
prefixes received from EBGP peers and prefixes locally originated via network statements or redistributedD
prefixes received from EBGP peers and prefixes received from route reflectorsE
prefixes received from other IBGP peers， prefixes received from EBGP peers，and prefixes redistributed to BGPF
prefixes received from other IBGP peers and prefixes received from route reflectors
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单选题Which types of prefixes will a router running BGP most likely advertise to an IBGP peer， assuming it is not configured as a route reflector？ （）A
prefixes received from any other BGP peer and prefixes locally originated via network statements or redistributedB
all prefixes in its routing tableC
prefixes received from EBGP peers and prefixes locally originated via network statements or redistributedD
prefixes received from EBGP peers and prefixes received from route reflectorsE
prefixes received from other IBGP peers， prefixes received from EBGP peers， and prefixes redistributed to BGPF
prefixes received from other IBGP peers and prefixes received from route reflectors
考题
单选题When an ICMP redirect is received from a host that is not the current gateway for the route it is redirecting， which of the following options is the most appropriate to conclude？（）A
The redirect will be ignoredB
The routing table will be alteredC
The ping will fail， followed by other network services.D
The host， which sent the ICMP redirect， will begin acting as the gateway
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