题目内容

AuserstatesthattheLCDdisplayontheirlaptophasintermittentlinesonthescreen.Thetechniciannoticesthatwhenthedisplaypanelismoved,thelineappearsandthendisappears. WhichofthefollowingistheMOSTlikelycause?（）

A. Thehingeonthedisplaypanelisdamaged.
B. Thedisplaycableislooseordamaged.
C. Thedisplaypanelisdefective.
D. Thevideocontrolleronthesystemboardisdefective.

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WhichtwofeaturesprotecttheERXEdgeRouterfromdenial-of-serviceattacks?（）

A
B
C
D

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Whichtwoprefixeswouldsummarizethenetworksshownbelow?（）

A. 192.168.0.0/23
B. 192.168.0.0/22
C. 192.168.0.0/24
D. 192.168.0.0/21

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Anewprocessorwasrecentlyinstalledonaoneyearoldmotherboard,replacingtheoriginalprocessor.Theprocessorisonthemotherboard’ssupportedprocessorlistandwasdoublecheckedforproperinstallation.However,thePCrefusestoPOSTproperlyanddisplaysnovideoonscreen. WhichofthefollowingistheMOSTlikelyissue?（）

A. Toomuchthermalpastewasusedontheprocessoranditispreventingboot.
B. ThemotherboardneedstohaveitsPWDjumperremovedbeforethefirstboot.
C. ThemotherboardneedstohavethemostrecentBIOSversioninstalled.
D. ThemotherboardneedstohaveanewerCMOSchipinstalled.

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WhensendinganLCPConfigurationRequest,whatcantheERXEdgeRouterpossiblynegotiate?（）

A. IPaddress
B. magicnumber
C. WINSassignment
DomainNameServer

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AuserstatesthattheLCDdisplayontheirlaptophasintermittentlinesonthescreen.Thetechniciannoticesthatwhenthedisplaypanelismoved,thelineappearsandthendisappears. WhichofthefollowingistheMOSTlikelycause?（）

A. Thehingeonthedisplaypanelisdamaged. B. Thedisplaycableislooseordamaged. C. Thedisplaypanelisdefective. D. Thevideocontrolleronthesystemboardisdefective.

WhichtwofeaturesprotecttheERXEdgeRouterfromdenial-of-serviceattacks?（）

Whichtwoprefixeswouldsummarizethenetworksshownbelow?（）

Anewprocessorwasrecentlyinstalledonaoneyearoldmotherboard,replacingtheoriginalprocessor.Theprocessorisonthemotherboard’ssupportedprocessorlistandwasdoublecheckedforproperinstallation.However,thePCrefusestoPOSTproperlyanddisplaysnovideoonscreen. WhichofthefollowingistheMOSTlikelyissue?（）

WhensendinganLCPConfigurationRequest,whatcantheERXEdgeRouterpossiblynegotiate?（）

A. Thehingeonthedisplaypanelisdamaged.
B. Thedisplaycableislooseordamaged.
C. Thedisplaypanelisdefective.
D. Thevideocontrolleronthesystemboardisdefective.