Which WAN scenario might be appropriate for queuing solutions?

Which WAN scenario might be appropriate for queuing solutions?
A . A newly implemented WAN connection has yet to demonstrate sufficient WAN statistics for congestion-level tracking.
B . A WAN connection features consistent congestion problems, and data transfers often suffer.
C . A WAN connection is rarely congested, and data transfers never suffer.
D . A WAN connection features occasional periods of congestion, and data transfers have occasionally suffered as a result.

View Answer

Answer: D