Which connection method do OSPF routers use to communicate with each other?

Which statement is true about default BGP route redistribution behavior?

In a PIM-SM network, which type of node helps to build a tree towards an unknown multicast
source?

Which statement is true about MVRP?

Which statement is true about LLDP?

Which CoS feature avoids congestion in a device by limiting traffic on ingress interfaces?

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Which statement is true about the IPv6 network shown in the exhibit?

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Referring to the exhibit, what is the shortest path from R6 to R5?

R1 and R2 are ASBRs in the same area, each with an equal cost external path to the same
external network prefix. R1 advertises an external route into OSPF with a Type 1 metric. R2
advertises an external route into OSPF with a Type 2 metric.
Which route would be preferred?

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Referring to the exhibit, which LSA type will Router R2 inject into Area 1?