Messer Chapter 1.5 - Storage devices

  1. How are small bumps read on optical format?
    By a small laser beam
  2. CD-ROM
    Compact Disk ROM
  3. How much can a CD-ROM store?
    Up to 700 MB
  4. DVD-ROM
    Digital Versatile Disc ROM
  5. How much can a single and double layer DVD rom hold?
    • Single layer - 4.7 GB
    • Double Layer - 8.5 GB
  6. How much can a single and double layer blue ray disc hold?
    • Single layer - 25 GB
    • Double Layer - 50 GB
  7. Do burners create bumps?
    No they use photosensitive dye
  8. What is the writable version of a CD called?
    Compact Disc-ReWritable (CD-RW)
  9. What are the 3 writable versions of a DVD called?
    • DVD Read (DVD-R)
    • DVD ReWritable (DVD-RW)
    • Dual Layer (DVD-DL)
  10. What are the 2 writable versions of a Blu ray called?
    • Blu-Ray Disc Recordable (BD-R)
    • Blu-Ray Disc Recordable Erasable (BD-RE)
  11. Name the 5 parts inside a Hard Disk Drive
    • 1. Actuator
    • 2. Arm
    • 3. Head
    • 4. Spindle
    • 5. Platter
  12. What are the 3 RPM standards in Hard Disk Drives?
    • 1. 5,400
    • 2. 7,200
    • 3. 10,000
  13. What are the 3 latency standards in Hard Disk Drives?
    • 1. 5.55 ms (for 5.4k)
    • 2. 4.16 ms (for 7.2k)
    • 3. 3 ms (for 10k)
  14. SSD
    Solid State Drive
  15. What type of memory is an SSD?
    Flash Memory because of no moving parts
  16. What do you get when you combine an SSD and an HDD?
    Solid State Hybrid Drive that has an SSD and a spinning drive combined
  17. SSHD
    Solid State Hybrid Drive
  18. What does the SSD do in an SSHD?
    Caches the slower spinning hard drive data
  19. What are the 4 hot swappable HDD formats?
    • 1. USB
    • 2. FireWire
    • 3. SATA
    • 4.eSATA
  20. SATA
    Serial Advanced Technology attachment
  21. eSATA
    external SATA
  22. Name the 3 traits for flash memory (USB)
    • 1. EEPROM
    • 2. Non-volatile memory
    • 3. No power required to retain data
  23. What are 2 cons of USB drives
    • 1. Limited number of writes
    • 2. Not designed for archiving data
  24. Name all 7 Flash Memory hardware
    • 1. USB
    • 2. Compact Flash
    • 3. SD
    • 4. MiniSD
    • 5. MicroSD
    • 6. xD-picture Card
    • 7. eMMC
  25. SD
    Secure Digital
  26. WHat flash memory does your phone have?
    eMMC
  27. Best storage to archive data?
    Tape Drives
  28. What are the size range of storage for tape drives
    100 GB to multiple TB
  29. LTO
    Linear Tape Open
  30. Common form factor for tape drives?
    LTO
  31. RAID
    Redundant Array of Independent Disks
  32. Name the 4 traits of raid 0
    • 1. Striping
    • 2. Need 2 physical drives
    • 3. High Performance
    • 4. No redundancy
  33. Name the 4 traits of raid 1
    • 1. Mirroring
    • 2. 2 drives minimum
    • 3. High disk usage
    • 4. Redundancy
  34. Name the 4 traits of raid 5
    • 1. Striping with parity
    • 2. Need 3 disks
    • 3. No duplication, space is used for parity
    • 4. Redundancy
  35. Name the 4 traits of raid 10
    • 1. Striping and Mirroring
    • 2. 4 Drives min
    • 3. High Disk Usage
    • 4. Redundancy
  36. Which of the terms listed below refers to a proprietary flash memory card format used mainly in older digital cameras?
    A) xD
    B) SD
    C) SSD
    D) Mini-SD
    E) Micro-SD
    A
  37. A type of media used as a secondary system storage in tablets and mobile phones is known as:




    D)
  38. RAID Level 5: (Select 2 answers)

    A) Requires at least 2 drives to implement

    B) Continues to operate in case of failure of more than 1 drive

    C) Requires at least 3 drives to implement

    D) Offers increased performance and fault tolerance (single drive
    failure does not destroy the array and lost data can be re-created by
    the remaining drives)

    E) Requires at least 4 drives to implement
    C,D
  39. Which RAID type has the highest disk overhead?

    A) RAID Level 3
    B) RAID Level 5
    C) RAID Level 6
    D) RAID Level 1
    D
Author
andresg770
ID
330301
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Messer Chapter 1.5 - Storage devices
Description
Storage
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