MCQ PracticeWhich of the following file names are invalid in MSDOS?Subject: Computer Science EngineeringTopic: Disk Operating System (Dos)AMYFILE.DOSBCHECK$.(1)CVerified.###DQwerty.1?3Correct Answer: DPractice 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