o measure data transmission rate:

$1$ Mbps $($mega bits per second$)=1000$ kbps $($kilo bits per second$)=1,000,000$ bps $($bits per second$)$

To measure data storage:

$1$ byte $=8$ bits

$1$ MB $($megabyte$)=210$ KB $($kilobyte$)=220$ bytes $=1,048,576$ bytes

$1.$ A company$$s telephone exchange $($PBX or hosted IP$-$PBX$)$ digitizes telephone channels at $8000$

samples per second, using $8$ bits for quantization. The telephone exchange transmits $24$ telephone

channels simultaneously over the same communications link.

a$.$ What$$s the required per channel data rate? Show your work. $(5$ points$)$

Inserted your answer below in this box.

b$.$ What is the combined data rate for the $24$ channels over the communications link? Show your

work.