多項選擇題

Which of the following commands verifies connectivity between two hosts?（）

A.chkntfs
B.dxdiag
C.tracert
D.ipconfig
E.ping

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單項選擇題

A customer reports that the laser printer produces poor quality printouts. Having arrived onsite, the technician has a discussion with the customer and reviews some examples of their print jobs. Which of the following should the technician do NEXT? （）

A. Clean the toner cartridge.
B. Change the paper.
C. Replace the fuser.
D. Print a test page.

單項選擇題

A technician receives a boot error message OS not found. Which of the following should thetechnician check? （）

A. The boot order in the BIOS
B. If Plug and Play is enabled
C. If the computer is in Safe Mode
D. If the BIOS is current