21. The amount of data that a disk may containis known as the disk’s…?
(1) Volume
(2) Size
(3) All of the above
(4) Storage capacity
(5) None of these
22. You can protect a floppy disk.
(1) Read
(2) Read and Write
(3) Write
(4) All of the above
(5) None of these
23. Information on a hard disk is usually backed-up using a..?
(1) CD-ROM
(2) Magnetic tape
(3) Floppy disk
(4) All of the above
24. Magnetic storage devices can represent binary 0 by t absence of…?
(1) A magnetic field
(2) Magnetic tape
(3) Static electricity
(4) All of the above
(5) None of these
25. Magnetic tape is a..?
(1) Random access medium
(2) A parallel access medium
(3) Serial access medium
(4) All of the above
(5) None of these
26. Hard disks can have a storage capacity in the region of
(1) 1Gb
(2) 1.44Mb
(3) 720K
(4) All of the above
(5) None of these
27. Formatting a disk results in all the data being…?
(1) Saved to the disk
(2) Copied from the disk
(3) Deleted from the disk
(4) All of the above
(5) None of these
28. Which storage device has the largest capacity in Mb’s?
(1) A floppy disk
(2) A CD-ROM
(3) Magnetic tape storage
(4) All of the above
(5) None of these
29. Which storage device cannot be erased?
(1) A CD-ROM
(2) None of these
(3) Magnetic tape storage
(4) All of the above-
(5) A floppy disk
30. Where should floppy disks be stored?
(1) By a sunny window
(2) In a drawer
(3) All of the above
(4) By magnet objects
(5) None of these