Which of the following sits between the Internet and the internal network and is sometimes referred to as a perimeter network?

A(n) __________ is an electronic signal that results in the forced transfer of control to a handler routine.

a. task b. exception c. interrupt d. kernel call

Write a Bash script called mv (which replaces the GNU utility mv) that tries to rename the specified file (using the GNU utility mv), but if the destination file exists, instead creates an index number to append to the destination file, a sort of version number. (example omitted)

What will be an ideal response?