Define Poison Reverse?
A.) To prevent regular update messages from reinstating a
route that has
gone down
B.) Packets sent out that are not destined for a network go
to the
default network
C.) Information received on an interface cannot be sent back
out the
same interface
D.) When a network goes down, the router enters in its table
the number
16 to signify destination unreachable
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Answer / guest
Answer: D
By entering a 16 as the hop count, the other routers know
that the
destination is unreachable.
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CCNA 
