If the ping command returns one failure to start followed by four successful connections, which of the following is likely?
A) A device in the route was missing an ARP value.
B) The host was not operational but came online.
C) A route dropped a message in transit.
D) A router was unreachable and was bypassed.
A
Explanation: A) This is a common case in which an ARP value is missing; once it is learned, the route will succeed in subsequent attempts.
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