题目内容

WhenconfiguringaPOSsystem,whichofthefollowingperipheraldeviceswouldMOSTlikelyneedtobeinstalled?（）

A. Opticalmouse
B. Handhelddigitizer
C. Barcodereader
D. Touchscreen
E. Documentscanner
F. Keyboard
G. ExternalUSBdrive

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网络系统的主要安全威胁是（）等。

A. 网络操作系统
B. 黑客攻击
C. 计算机病毒和拒绝服务
D. 安全产品及管理

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AlaptopoperatesonbatterypowerwhenconnectedwithanACadapter.Oncethebatterydischarges,thecomputerturnsoffandwillnotturnbackon.WhichofthefollowingaretheMOSTlikelycausesofthelaptopissue?（）(SelectTWO).

A. TheLCDmonitor’spowerinverterdoesnotfunctionproperly.
B. Theoperatingsystem’spowersettingspreventthebatteryfromcharging.
C. Thebatteryisnotcompatiblewiththelaptop.
D. Theinternalpowerconnectiononthemotherboardisfaulty.
E. Thepoweradapterisnotworking.

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检查闸瓦磨耗情况，闸瓦厚度应大于（），否则应更换

A. 10mm
B. 15mm
C. 20mm
D. 25mm

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AuserreportsittakesalongtimetoloadallapplicationsandtheharddriveLEDisshowingconstantactivity.WhichofthefollowingisMOSTlikelytheissue?（）

A. Theprocessorisfaulty.
B. Thefilesystemisfragmented.
C. Themodemdriversarecorrupt.
D. Thepowersupplyisfaulty.

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WhenconfiguringaPOSsystem,whichofthefollowingperipheraldeviceswouldMOSTlikelyneedtobeinstalled?（）

A. Opticalmouse B. Handhelddigitizer C. Barcodereader D. Touchscreen E. Documentscanner F. Keyboard G. ExternalUSBdrive

网络系统的主要安全威胁是（）等。

AlaptopoperatesonbatterypowerwhenconnectedwithanACadapter.Oncethebatterydischarges,thecomputerturnsoffandwillnotturnbackon.WhichofthefollowingaretheMOSTlikelycausesofthelaptopissue?（）(SelectTWO).

检查闸瓦磨耗情况，闸瓦厚度应大于（），否则应更换

AuserreportsittakesalongtimetoloadallapplicationsandtheharddriveLEDisshowingconstantactivity.WhichofthefollowingisMOSTlikelytheissue?（）

A. Opticalmouse
B. Handhelddigitizer
C. Barcodereader
D. Touchscreen
E. Documentscanner
F. Keyboard
G. ExternalUSBdrive