From which file format is the image format XIF derived?

We've seen a method that reverses a sound and a method that can process samples by index number.

Write a method called reverseLastHalf that reverses just the second half of the current sound. For example, if the sound said \MarkBark" the returned sound should say \MarkkraB."

A(n) ____________________ plan ensures that critical business functions continue if a catastrophic incident or disaster occurs.

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