Formatting does not change the data value, it only changes its appearance

Which of the following settings, when enabled, is MOST likely to result in an IP address conflict on a local network?

A. Custom DNS address B. QoS enabled C. UPnP enabled D. Static IP address

In programming terminology, an object is said to be a(n) ___________________ of a class.

Fill in the blank(s) with the appropriate word(s).