题目内容

Atechnicianisservicingacustomer’scolorlaserprinterandnoticesexcesstonerintheprinter.WhichofthefollowingtoolswouldBESTassistthetechnicianinremovingtheexcesstoner?()

A. Damptowel
B. Compressedair
C. Alcoholwipe
D. Computervacuum

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更多问题

Whichofthefollowingcommandsisusedtodeleteanemptydirectory?()

A. RD
B. EDIT
C. DIR
D. FORMAT

Bydefault,howdoestherouterhandlechangestoitsoperationalconfiguration?()

A. Changesarenotimplemented,butaresavedautomatically.
B. Changesarenotimplementedandmustbewrittenintomemory.
Changesareimplementedimmediatelyandsavedautomatically.
D. Changesareimplementedimmediately,butmustbewrittenintomemory.

Anetworkingdevicethatsendspacketstoallconnectionsisa:()

A. gateway.
B. hub.
C. switch.
D. router.

WhichofthefollowingkeysispressedtoentertheWindowsbootoptionsafterPOST?()

A. F1
B. F8
C. F10
D. F12

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