CompTIA A+ Chapter 7 Upgrading Memory Test

20 Questions | Attempts: 726
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A Plus Certification Quizzes & Trivia

This test goes along with chapter 7 of our Comptia A+ book.


Questions and Answers
  • 1. 
    How many bits are in the SIMM's data path?
    • A. 

      16

    • B. 

      32

    • C. 

      64

    • D. 

      128

  • 2. 
    Which of the following statements best describes DDR?
    • A. 

      DDR doubles the data rate of memory by processing data when the beat of the clock rises and again when it falls.

    • B. 

      DDR runs more slowly than regular SDRAM.

    • C. 

      DDR uses 168 pins.

    • D. 

      DDR improves on DDR2.

  • 3. 
    With dual channels, the memory controller can communicate with how many DIMMs at the same time?
    • A. 

      1

    • B. 

      2

    • C. 

      3

    • D. 

      4

  • 4. 
    Which of the following best describes odd parity?
    • A. 

      It makes the parity bit a 1 or a 0 to make the number of 1s in the 9 bits even.

    • B. 

      A parity error occurs only when there is an odd number of bits.

    • C. 

      It makes the ninth or parity bit either a 1 or a 0 to make the number of 1s in the 9 bits odd.

    • D. 

      Newer DRAM systems also us odd parity error checking.

  • 5. 
    Which of the following best describes the features CAS Latency and RAS Latency?
    • A. 

      Both features refer to the size of the memory module.

    • B. 

      RAS Latency is used more than CAS Latency.

    • C. 

      It takes four or five clock cycles to read or write data.

    • D. 

      Both features refer to the number of clock cycles it takes to write or read a column or row of data off a memory module.

  • 6. 
    True or false?In a DIMM, each pin pair is tied together into a single contact.
    • A. 

      True

    • B. 

      False

  • 7. 
    True or false?The smaller the speed rating is, the faster the chip.
    • A. 

      True

    • B. 

      False

  • 8. 
    True or false?Notches on the memory modules are used to identify the technologies that the module supports.
    • A. 

      True

    • B. 

      False

  • 9. 
    True or false?For dual channeling to work, the pair of DIMMs in a channel must be equally matched in size, speed, and features.
    • A. 

      True

    • B. 

      False

  • 10. 
    True or false?When using RIMMs some memory slots on the motherboard can be empty.
    • A. 

      True

    • B. 

      False

  • 11. 
    If a memory module doesn't support registers or buffers, it's always referred to as a(n) __________________ DIMM.
    • A. 

      Unregistered

    • B. 

      Unbuffered

    • C. 

      Unchecked

    • D. 

      Incompatible

  • 12. 
    A(n)  _____________ is an area on the motherboard that holds the minimum number of memory chips or memory modules that must work together as a unit.
    • A. 

      Bank

    • B. 

      Section

    • C. 

      Memory space

    • D. 

      Memory controller hub

  • 13. 
    In older DRAM memory systems, a(n) _______________ error always caused the system to halt.
    • A. 

      Self-checking

    • B. 

      ECC

    • C. 

      Parity

    • D. 

      Error correcting code

  • 14. 
    Parity memory uses  _______ bits.
    • A. 

      18

    • B. 

      32

    • C. 

      16

    • D. 

      9

  • 15. 
    Computer memory is divided into two categories: ______________ and ______________.
    • A. 

      DDR and DDR2

    • B. 

      DRAM and SRAM

    • C. 

      Parity and ECC

    • D. 

      ROM and RAM

  • 16. 
    ___________ is contained within the processor housing and sometimes embedded on the motherboard.
    • A. 

      SRAM

    • B. 

      DRAM

    • C. 

      DDR2

    • D. 

      DDR

  • 17. 
    SO-DIMMs and SO-RIMMs are used in ____________.
    • A. 

      Desktop computers

    • B. 

      Notebook computers

    • C. 

      Iphones

    • D. 

      Ipads

  • 18. 
    When looking at a DIMM with the pins facing you, the notch on the right identifies ____________.
    • A. 

      the voltage used by the module

    • B. 

      The module as registered, buffered, or unbuffered

    • C. 

      The manufacturer of the module

    • D. 

      The type of memory technology the module uses

  • 19. 
    A placeholder memory module, called a _____________, is sometimes used to ensure continuity throughout all memory slots.
    • A. 

      RIMM

    • B. 

      C-RIMM

    • C. 

      RDRAM

    • D. 

      SO-DIMM

  • 20. 
    _______________ memory costs more, but it is more reliable and is generally used on servers.
    • A. 

      ECC

    • B. 

      Parity

    • C. 

      DIMM

    • D. 

      SIMM

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