Review Questions

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1. Which of the following are valid types of memory modules used in a computer? (Choose Three)

   1. ZIMM

   2. SwapSIM

   3. RIMM

   4. DIMM

   5. ZDRIMM

   6. SIMM

   Correct Answers = C, D, and F.

   RIMM, DIMM, and SIMM are valid memory modules. All others listed are not.

2. Of the following types of RAM, which is the fastest?

   1. Page fault RAM

   2. FPM DRAM

   3. EDO RAM

   4. Swap file RAM

   Correct Answer = C.

   EDO is faster than FPM memory. Page fault RAM and swap file RAM are made-up names intended to trick you.

3. Which type of memory is internal to the processor?

   1. Level 1 cache

   2. Bus RAM

   3. BEDO RAM

   4. EDO RAM

   5. Parity with ECC

   Correct Answer = A.

   Level 1 cache is considered primary cache and is internal or built into the processor itself.

4. Which type of memory uses burst mode to send data?

   1. CD-RW RAM

   2. SDRAM

   3. High-speed RAM

   4. Coast RAM

   Correct Answer = B.

   SDRAM uses burst mode (automatic retrieval of data before it is requested) for read and write operations. SDRAM sends data in high-speed bursts by utilizing burst mode.

5. What type of memory module is displayed below?

   
   Figure 4.7: A memory module.

   1. 168-pin DIMM

   2. 72-pin SIMM

   3. RIMM

   4. 30-pin SIMM

   Correct Answer = D.

6. What type of memory module is displayed below?

   
   Figure 4.8: A memory module.

   1. 168-pin DIMM

   2. 72-pin SIMM

   3. RIMM

   4. 30-pin SIMM

   Correct Answer = B.

7. What type of memory module is displayed below?

   
   Figure 4.9: A memory module.

   1. 30-pin SIMM

   2. 72-pin SIMM

   3. SGRAM

   4. 168-pin DIMM

   Correct Answer = D.

8. How many DIMMs are required per memory bank on a motherboard?

   1. Two

   2. One

   3. 1,073,741,824

   4. Eight

   Correct Answer = B.

   DIMMs can be installed in units of one (one module) per memory bank. In other words, you can install one DIMM on a motherboard if you so choose.

9. Which of the following statements is not true?

   1. A kilobyte is equal to 1024 bytes.

   2. A megabyte is equal to 1,048,576 bytes.

   3. A gigabyte is equal to 1,073,741,824 bytes.

   4. All of the above statements are true.

   Correct Answer = D.

   All of the statements are in fact true. Please refer to Table 4.1, RAM Units and Size.

10. Which of the following memory modules are specifically designed for laptop computers?

    1. FSO RAM

    2. SOSORIMM

    3. SODIMM

    4. SDIMM

    5. None of the above

    Correct Answer = C.

    A SODIMM is a smaller DIMM specifically designed for laptop computers. There are two major types of SODIMMs. They come on a module that is 72 pins with a transfer rate of 32 bits or on a module with 144 pins at a transfer rate of 64 bits.

11. What would a technician use WRAM for?

    1. Video

    2. Audio

    3. Windows memory

    4. L3 cache acceleration

    5. None of the above

    Correct Answer = A.

    WRAM is used for video.

12. What type of memory module is displayed below?

    
    Figure 4.10: A memory module.

    1. 30-pin SIMM

    2. SODIMM

    3. SGRAM

    4. 168-pin DIMM

    Correct Answer = B.

13. What type of memory module is displayed below?

    
    Figure 4.11: A memory module.

    1. 30-pin SIMM

    2. SODIMM

    3. MicroDIMM

    4. 168-pin DIMM

    Correct Answer = C.

14. What type of memory module is displayed below?

    
    Figure 4.12: A memory module.

    1. 30-pin SIMM

    2. MicroDIMM

    3. SGRAM

    4. RIMM

    Correct Answer = D.

15. Which type of memory uses 184 pins and has a memory bus width of 16 bits (or 2 bytes wide)?

    1. SIMM

    2. DIMM

    3. RIMM

    4. SODIMM

    5. NOSDRMM

    6. None of the above

    Correct Answer = C.

    A RIMM module has 184 pins and has a memory bus width of 16 bits (or 2 bytes wide). Please refer to Table 4.3, Memory Module Quick Reference.

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