"Another term for network congestion" defines which of the following?

The Picture password feature of Windows 8 and Windows 8.1 can be enabled if your computer has a touch-enabled device or screen. To use it, you select a picture as the basis; then your _________becomes the basis of your logon authentication

a. Password b. Fingerprint across the picture c. Gestures across the picture d. Double-clicking the picture

ListIterator is a subinterface of

A) Collection B) Iterator C) List D) Comparator