This vector function returns true if the vector has no elements.

What is the value of X in the following expression, given that Y = 429: Set X = Round(Y/8)

a. 53 b. 53.75 c. 54 d. this cannot be done

Intruders have been known to capture user passwords by using a ____ to replace the standard login program on the computer with an identical fake login that captures keystrokes.

A. worm B. masquerade program C. Trojan horse D. virtual login console