To select nonadjacent changing cells, press and hold the _______ key as you click each cell.

If a list contains 1,000 items, the set() and get() methods will require time proportional to ____ accesses to retrieve the middle item.

A. 2 B. 100 C. 500 D. 1,000

Which of the following is the fastest switching mode?

A. cut-through B. fragment-free C. store-and-forward D. auto-negotiate