If a user reinstalls a software package from the original distribution media, they must also install any patches that had been previously installed to fix bugs.

Typically, ___________ statements are used for counter-controlled iteration and ________ statements for sentinel-controlled iteration.

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

A stack is referred to as a(n) ________________ data structure because the last node inserted is the first node removed.

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