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Asystemadministratorisattemptingtorestoresomefilesfromabackuptape.Therestorefailed.Thesystemadministratorsuspectstheblocksizeofthetapedriveisincorrect.Whichofthefollowingcommandscanbeusedtodeterminetheblocksizeofthebackuptape?()
A.dd
B.tar
C.cpio
D.restore
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