Which of the following computer ports supports hot swapping?（）

单项选择题USB 2.0 supports a maximum data transfer speed of （）Mbps.

A.12
B.80
C.480
D.10

单项选择题The Serial ATA (SATA) cables can extend up to （）.

A.10 meters
B.5 meters
C.1 meter
D.100 meters
E.15 meters

单项选择题What does DVI stand for?（）

A. Dual Visual Interface
B. Display Vertical Interface
C. Digital Visual Interface
D. Digital Vision Interchange

单项选择题（）is a technique used for illumination behind the liquid crystal display that makes LCDs easier to read.

A. Frontlight
B. Backup Power
C. Cathode ray tube
D. Backlight

单项选择题（）enables a computer processor to process two sets of instructions at the same time.

A.Multi-tasking
B.Hyper-threading
C.Hyper-caching
D.Caching