RAM Memory

1. Which of the following loses its contents when you shut down the computer?
   1. Hard disk drive
   2. USB flash drive
   3. RAM
   4. ROM
2. Which memory module is much bulkier and more expensive than DRAM?
   1. SDRAM
   2. SRAM
   3. DRAM
   4. DDR
3. What type of RAM must be installed in pairs?
   1. DDR
   2. SDRAM
   3. DDR2
   4. Rambus
4. Which type of memory was the first to run in sync with the memory bus?
   1. DDR2
   2. SDRAM
   3. SRAM
   4. Rambus
5. Name the two methods that are used to protect the reliability of memory.
   1. Parity-Checking
   2. System checking
   3. ECC (error-correcting code)
   4. Smart checking
6. Most types of desktop memory modules use which kind of memory?
   1. Unbuffered memory
   2. No memory
   3. SIMM module
   4. Stable memory
7. Critical applications and network servers have a special type of memory. What is it called?
   1. ECC memory
   2. unbuffered memory
   3. static memory
   4. desktop memory
8. To correctly install a DIMM or Rambus module, what should you do? (Choose all that apply.)
   1. Line up the module connectors with the socket
   2. Verify that the locking tabs on the socket are swiveled to the outside (open) position
   3. After verifying that the module is lined up correctly with the socket, push the module straight down into the socket until the swivel locks on each end of the socket snap into place at the top corners of the module
   4. None of these options is correct
9. Which of the following is the name for running the processor or memory at speeds faster than what is recommended?
   1. CPU tweaking
   2. Overclocking
   3. Memory leak
   4. CPU duplicating

10. 

    Which of the following are types of metal used for contacts on SIMMs? (Choose two.)
    1. Tin
    2. Copper
    3. Zinc
    4. Gold
11. Which of the following are utilities that are used to check memory? (Choose all that apply.)
    1. CheckIT
    2. AMIDiag
    3. RAMExam
    4. All of these options are correct
12. To prevent overheating memory modules, which of the following tasks should you perform? (Choose all that apply.)
    1. Keep the surfaces of the modules clean. You can use compressed air or a data-rated vacuum cleaner to remove dust.
    2. Make sure you are using the recommended voltage level for the memory installed if your system’s BIOS setup permits voltage adjustments.
    3. Install additional case fans over or behind the location of memory modules to pull hot air out of the system.
    4. All these options are correct.

Answers

1. C. Random access memory (RAM) loses its contents when the computer shuts down. Hard disk drives, USB flash drives, and read-only memory (ROM) are designed to retain their contents even if they are not receiving power.
2. B. SRAM or Static RAM is bulkier and more expensive than DRAM because it does not require electricity as often as DRAM
3. D. Rambus memory that uses 32-bit RIMMs must use pairs, and unused sockets must be occupied by a continuity module.
4. B. SDRAM was the first memory type that was in sync with the motherboard’s memory bus.
5. A, C. These two methods have an additional memory chip added for parity.
6. A. Unbuffered memory is used in most desktop computers sold in the market. This kind of memory is also used in some servers and workstations.
7. A. ECC memory enables the system to correct single-bit errors and notify you of larger errors.
8. A, B, C. To correctly insert the memory modules, you should follow all the steps listed. You might also have to use a fair amount of pressure to securely lock these modules in place.
9. B. Overclocking is the process in which you can set the speeds of the CPU or memory to run at a faster rate than normal. It can lead to overheating and system crashes.
10. A, D. The two types of metal that are used as contacts on SIMMs are gold and tin. Placing gold sockets in a tin socket and vice versa are most likely to see corrosion and eventual system lockups.
11. D. CheckIT, AMIDiag, and RAMExam can all be used to test memory.
12. D. All of these can be done to help prevent any memory issues, such as overheating.

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