AfterremovingseveralobsoleteprogramsfromaPC,auserisexperiencingslowerthanusuallyprocessingtimes.WhichofthefollowingwouldbetheBESTwaytospeeduptheprocessing?（）
A. Useanexternalharddrive.
B. Defragtheharddrive.
C. AddmoreRAMtothecomputer.
D. Installalargerharddrive.
Whichtwostatementsarecorrectwhenyouusetherejectparameterasthenext-hopvalueforastaticroute?（）
A. Thepacketisdroppedandthepacket'ssourceismarkedwiththeno-readvertiseparameter.
B. Thesystemsendsthepacketbacktothesource.
C. Thepacketisdroppedfromthenetwork.
D. ThesystemsendsanICMPmessagebacktothesourceofthepacket.
Giventhepolicy: Whichrouteswillbeaccepted?（）
A. allactivestaticrouteswithnometric
B. allinactivestaticrouteswithnometric
C. allactivestaticrouteswithametricof10
D. allinactivestaticrotueswithametricof10
WhichofthefollowingcouldcauseanInaccessiblebootdriveerrorduringthebootprocess?（）
A. HDDfailure
B. DVIfailure
C. USBfailure
D. CDfailure
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