单项选择题Which of the following devices would allow a technician to utilize a single mouse, keyboard, and display to control numerous desktop PCs?()

A. Port replicator
B. Docking station
C. USB hub
D. KVM switch


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3.单项选择题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

4.单项选择题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.

5.单项选择题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.

6.单项选择题A frustrated and angry customer calls in with a system that does not work. Which of the following is the FIRST course of action for a technician to take?()

A. Transfer the customer to another technician, who can allocate more time to the issue.
B. Maintain a positive attitude and offer them the cheapest solution possible to satisfy them.
C. Listen to what the customer has to say and calmly recommend the best course of action.
D. Use technical language to demonstrate knowledge and expertise to the customer.

9.单项选择题Which of the following is BEST for providing network security?()

A.Firewall
B.DMZ
C.Switch
D.IDS