A, Protocol
because An application service provider (ASP) is a business providing computer-based services to customers over a network; such as access to a particular software application (such as customer relationship management) using a standard protocol (such as HTTP).
You didn’t explain your question correctly so I can’t help you
<span>Wireless networks usually use radio (b) signals to send data. </span>
I'd go for <span>
FLOOR(x) </span>
The numerical function FLOOR(x) can be used to return the
largest integer value that is less than or equal to the numerical expression
provided. The numerical function CEILING (x) is the opposite of FLOOR(x) since
it gives the smallest integer value that is greater or equal to the numerical
expression.
