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02 - Storage Media and Devices

 1. SSDs use electrical circuits to persistently store data and the technology involves the use of NAND gates.
ssdvshdd.jpg

  False

  True

 2. Which of the following is the smallest unit of data that can be stored?
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  Bit

  Byte

  Megabyte

  Kilobyte

 3. The word 'bit' comes from 'Binary Digit'.

  True

  False

 4. A hard disk is an optical storage device.

  FALSE

  TRUE

 5. A magnetic tape is:
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  an optical device with serial access

  an optical device with random access

  a magnetic device with random access

  a magnetic device with serial access

 6. If you want to be able to save your files over and over again to the same CD, which of the following types of CD would you need to use?

  CD-R

  CD-WORM

  CD-RW

  CD-ROM

 7. A DVD is a flash storage device.

  FALSE

  TRUE

 8. Latency is:

  time taken to read and write data

  time taken to retrieve data

  time taken for user to select where the data is saved

  time taken to delete data

 9. Fill in the blanks. 
Floppy disk  is a type of disk storage___________________.
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  composed of a disk of thin and flexible magnetic storage medium, sealed in a rectangular plastic enclosure

  that uses magnetic tape for storing data

  composed of a pre-pressed optical compact disc that contains data, sealed in a rectangular plastic enclosure

   that includes flash memory with an integrated USB interface

 10. What is the order of capacity (smallest to largest) of the following storage media?

  DVD, floppy disk, Blu-ray, fixed hard disk

  Floppy disk, Blu-ray, DVD, fixed hard disk

  Floppy disk, DVD, Blu-ray, fixed hard disk

  Fixed hard disk, Blu-ray, DVD, floppy disk

 11. Which of these is a compact disk containing permanently stored data that cannot be altered?

  None of them

  CD-R

  CD-ROM

  CD-RW

 12. Which of these terms refers to computer data storage systems, data storage devices and data storage media that can be written to once but read from multiple times?

  WORM

  DVD-RW

  Tape library

  CD-RW

 13. Which of the following is an example of write once, read many (WORM) storage media type?

  Flash drive

  Magnetic tape

  BD-R

  CD-RW

 14. A type of storage device with no moving parts that uses memory chips instead of magnetic platters is commonly referred to as a solid-state drive (SSD).

  False

  True

 15. What would be the most suitable device to transfer a file from home to school?
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  Hard drive

  USB flash drive

  Zip disk

  Magnetic tape

 16. Which of the following is NOT an example of a storage device?

  Memory card

  Hard disk drive

  Zip disk

  Zip extractor program

 17. Fill in the blanks. 
Blu-ray disk enables you to record up to _____________ of data on a 
single side.

  4.7 GB

  25 GB

  1.44 MB

  1 GB

 18. Which of the following has the highest data density?

  DVD

  Hard disk

  CD

  Floppy disk

 19. Which of the following storage devices recording is done by burning tiny pits on a circular disk?

  Magnetic tape

  Floppy disk

  Punched card

  Optical disk

 20. In which of the following magnetic storage devices is the data stored on a cylindrical drum and subdivided into tracks?

  Magnetic disk

  Magnetic drive

  Magnetic drum

  Magnetic tape

 21. Which of these is a solid state storage device?

  USB flash drive

  CD-ROM

  Memory card

  Hard disk

 22. What type of storage is a SSD card?

  Magnetic storage

  Optical storage

  Solid-state

  Flash memory

 23. Which of the following types of storage would likely access its data the fastest?

  Flash memory

  Magnetic storage

  Optical storage

  Solid-state

 24. Which of the following types of storage is the most durable?

  flash memory

  solid state

  optical storage

  magnetic storage

 25. Which of the following types of storage is the most expensive per MB/GB?

  Optical storage

  Solid-state

  Flash memory

  Magnetic storage

 26. Why is a hard disk drive (HDD) not very portable?

  It has a laser incorporated

  It is made of glass

  It is made of bytes

  It has moving parts

 27. Which type of storage uses lasers to write the data?

  Magnetic storage

  Optical storage

  Flash memory

  Solid-state

 28. The types of storage are listed below from fastest to slowest. Which order is correct?

  Solid-state, optical, magnetic

  Solid-state, magnetic, optical

  Magnetic, optical, solid-state

  Optical, magnetic, solid-state

 29. Perhaps the strangest new storage technology of the future is DNA. The molecule that stores biological information could be used to store other kinds of data.

  True

  False

 30. Scientists and tech companies have been working on holographic data storage for decades. In 2011, GE demonstrated an example of holographic disc storage: DVD-sized disks that could store 500GB thanks to cramming the data onto layers of tiny holograms.

  False

  True


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