MCQ PracticeDisk copy command in DOS is used toSubject: Computer Science EngineeringTopic: Disk Operating System (Dos)ACopy a fileBCopy contents of one floppy disk to anotherCCopy contents of CD-ROM to anotherDAll of the aboveCorrect Answer: BPractice QuizBack to MCQsRelated MCQsCurrent flows in a circuit whenEighttenths coulomb passes a point in 4 s. The current in amperes isThe unit of electrical charge is the