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Question

A WATS arrangement

a.

is never less expensive than flat-rate service

b.

is always less expensive than flat-rate service

c.

is less expensive than flat-rate service only when the number of calls is small and the duration of each is long

d.

is less expensive than flat-rate service only when the number of calls is large and the duration of each is short

Posted under Switching Networking

Answer: (d).is less expensive than flat-rate service only when the number of calls is large and the duration of each is short

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Q. A WATS arrangement
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