Excel worksheets are saved in a(n) _____-dimensional workbook

Which expression adds 1 to the element of array arrayName at index i?

a. ++arrayName[i]. b. arrayName++[i]. c. arrayName[i++]. d. None of the above.

Answer the following statements true (T) or false (F)

1) Windows has no way to support the encryption of entire volumes. 2) Cache memory reduces average memory access time by exploiting the principle of locality. 3) A key aspect of I/O is the use of buffers that are controlled by I/O utilities rather than by application processes. 4) Two of the most widely used approaches to improve disk I/O performance are disk scheduling and disk cache. 5) In the C-SCAN disk scheduling algorithm, the disk arm is required to move in one direction only until it reaches the last track or there are no more requests to service in that direction, then it reverses direction and the scan proceeds in the opposite direction in the same fashion.