AWindowsOShasfailedtoloadafterasuccessfulpoweronselftest.Whichofthefollowingstepswillhelptroubleshoottheproblem?（）
A. ChangethetimeanddateintheBIO
B. Replacethekeyboard.
Checkformediaintheopticaldrive.
D. AddmoreRA
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WhatisthedefaultfunctionofasecondarypathinMPLS?（）
A. toactasanequal-costpathtotheprimarypath
B. toenableanotherLSPforloadbalancing
C. toactasadiversebackuppathtotheprimarypath
D. toallowtheuseofexplicitpathselectionviaEROs
WhichofthefollowingisthecorrectpathtoaddnewlocaluseraccountstoaWindows7computer?（）
A. ClickontheStartbutton>RightclickonComputer>SelectManage>ExpandLocalUsersandGroups>RightclickonUsers>SelectNewUser
B. ClickontheStartbutton>RightclickonMyComputer>SelectManage>RightclickonLocalUsersandGroups>SelectAddUsersfromthemenu
ClickontheStartbutton>RightclickonComputer>SelectManage>RightclickonLocalUsersandComputers>SelectNewUser
D. ClickontheStartbutton>RightclickonNetworkNeighborhood>SelectManage>RightclickonUsers>SelectNewUser
Anewlyinstalledfloppydriveactivitylightstayson.WhichofthefollowingistheMOSTlikelyproblem?（）
A. Thecomputerdoesnotsupportthistypeofdrive.
B. Connectorispluggedinbackwards.
C. Powerispluggedinbackwards.
D. Allfloppiesarecorrupt.
WhatisthepurposeoftheOSPFhellopacket?（）
A
B
C
D
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