單項(xiàng)選擇題

Which of the following features would hide internal IP addresses from the Internet?（）

A. Network Address Translation
B. Port forwarding
C. Quality of Service
D. SSID broadcast

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單項(xiàng)選擇題

When a grounding strap is not available, a technician can ground by touching the computer’s:（）

A. power supply.
B. CPU fan.
C. memory chips.
D. motherboard.

單項(xiàng)選擇題

Proper lifting technique for heavy items is:（）

A. to use gloves to pick up the item.
B. to squat and lift from the legs.
C. to have two people bend down and pick the item up.
D. to bend down and lift the item up.