Which statement about routing protocols is true?
A. Link-state routing protocols choose a path by the number of hops to the destination.
B. OSPF is a link-state routing protocol.
C. Distance-vector routing protocols use the Shortest Path First algorithm.
D. IS-IS is a distance-vector routing protocol.
Under which circumstance should a network administrator implement one-way NAT?
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when the network must route UDP traffic
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when traffic that originates outside the network must be routed to internal hosts
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when traffic that originates inside the network must be routed to internal hosts
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when the network has few public IP addresses and many private IP addresses require outside access
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