A technician is implementing a RAID 10 array on a server. Which of the following is the MINIMUM number of disks needed for this array?

The elements at the ____________________ of the stack have been in the stack the longest.

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

The requirement that every employee be able to perform the work of at least one other employee is known as __________.

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