Computer Networking
A WATS arrangement

is always less expensive than flat-rate service
is less expensive than flat-rate service only when the number of calls is small and the duration of each is long
is less expensive than flat-rate service only when the number of calls is large and the duration of each is short
is never less expensive than flat-rate service
None of these

ANSWER DOWNLOAD EXAMIANS APP

Computer Networking
What is the purpose of flow control?

To ensure that data is retransmitted if an acknowledgment is not received.
To regulate the size of each segment.
To reassemble segments in the correct order at the destination device.
To provide a means for the receiver to govern the amount of data sent by the sender.

ANSWER DOWNLOAD EXAMIANS APP