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單項(xiàng)選擇題

Bob, a technician, wants to run antivirus scans on every machine on a daily basis. To minimize the impact to all system resources, which of the following is the BEST time to schedule the scans to run?（）

A. 5:00 p.m. - 7:00 p.m.
B. 7:30 a.m. - 9:30 a.m.
C. 11:00 p.m. - 1:00 a.m.
D. 12:00 p.m. - 2:00 p.m.

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單項(xiàng)選擇題

While using the ping command to try and reach a local server, a technician receives a response of “Destination host unreachable”. After confirming that the PC is physically connected to the network, which of the following commands should the technician use to get more detailed information?（）

A.TRACERT
B.GREP
C.TELNET
D.DIG

單項(xiàng)選擇題

Which of the following printer failure symptoms can be described as a condition where the internal feed mechanism has stopped working temporarily?（）

A. Power cycle
B. Paper jam
C. No connectivity
D. Corrupt printer driver

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