22 terms

A+ Chapt 05 - Quiz - RAM

Which of the following loses its contents when you shut down the computer?

a. Hard disk drive
b. USB flash drive
c. RAM
d. ROM
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.
Which type of memory chip is much bulkier and more expensive than DRAM?

d. DDR
B. SRAM or Static RAM is bulkier and more expensive than DRAM. It does not require electricity as often as DRAM.
What type of RAM must be installed in pairs?

a. DDR
c. DDR2
d. Rambus
D. Rambus memory that uses 32-bit RIMMs must use pairs, and unused sockets must be occupied by a continuity module.
Which type of memory was the first to run in sync with the memory bus?

a. DDR2
d. Rambus
B. SDRAM was the first memory type that was in sync with the motherboard's memory bus.
What two methods are used to protect the reliability of memory. (Select the two best answers.)

a. Parity checking
b. System checking
c. ECC (error-correcting code)
d. Smart checking
A, C. Parity memory and ECC have an additional memory chip added for parity.
Most types of desktop memory modules use which kind of memory?

a. Unbuffered memory
b. No memory
c. SIMM module
d. Stable memory
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.
Critical applications and network servers have a special type of memory. What is it called?

a. ECC memory
b. Unbuffered memory
c. Static memory
d. Desktop memory
A. ECC memory enables the system to correct single-bit errors and notify you of larger errors.
To correctly install a DIMM or Rambus module, what should you do? (Choose all that apply.)

a. Line up the module connectors with the socket.
b. Verify that the locking tabs on the socket are swiveled to the outside (open) position.
c. Verify that the module is lined up correctly with the socket. Then, push the module straight down until the locks on each end of the socket snap into place at the top corners of the module.
d. None of these options is correct.
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.
Which of the following is the name for running the processor or memory at speeds faster than what is recommended?

a. CPU tweaking
b. Overclocking
c. Memory leak
d. CPU duplicating
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.
Which of the following type of RAM can transmit 6,400 MBps?

a. DDR3-800
b. DDR3-1066
c. DDR3-1333
d. DDR3-1600
A. DDR3-800 can transmit 6,400 MBps. DDR3-1066 transmits 8,533 MBps. DDR3-1333 transmits 10,667 MBps. DDR3-1600 transmits 12,800 MBps.
Which of the following are utilities used to check memory? (Choose all that apply.)

a. CheckIT
b. AMIDiag
c. Windows Memory Diagnostic Tool
d. All of these options are correct.
D. CheckIT, AMIDiag, and the Windows Memory Diagnostic Tool can all be used to test memory.
To prevent overheating memory modules, which of the following tasks should you perform? (Choose all that apply.)

a. Keep the surfaces of the modules clean. You can use compressed air or a data-rated vacuum cleaner to remove dust.
b. Make sure you are using the recommended voltage level for the memory installed if your system's BIOS setup permits voltage adjustments.
c. Install additional case fans over or behind the location of memory modules to pull hot air out of the system.
d. All these options are correct.
D. All of these can be done to help prevent any memory issues, such as overheating.
Which of the following statements is correct when comparing DDR3 memory to DDR2 memory?

a. DDR3 has the same pinouts as DDR2.
b. DDR3 and DDR2 both use 240-pin connectors.
c. DDR3 uses higher voltages than DDR2.
d. All these options are correct.
B. DDR3 and DDR2 both use 240-pin connectors is the only correct answer. While DDR3 and DDR2 both use 240-pin connectors, the connectors use different pinouts and are keyed differently to avoid installing DDR3 in a DDR2 slot or vice-versa. DDR3 uses lower voltage than DDR2. DDR3 memory uses 1.5V DC power, compared to 1.8V DC for DDR2.
You are required to install a DDR2 memory module that can transfer 6,400 MBps. Which kind of DDR2 memory module should you select?

a. PC2-5300
b. PC2-6400
c. PC3-6400
d. DDR2-667
B. The correct answer is PC2-6400. This is a type of DDR2 memory module that can transfer 6,400 MBps. It is based on the DDR2-800 standard. PC2-5300 can only transfer 5,333 MBps; that is known as the DDR2-667 standard. PC3-6400 does transfer 6,400 MBps, but it is a DDR3 standard known as DDR3-800. DDR3 modules cannot be installed into DDR2 memory slots. DDR2-667 once again is a DDR2 standard that specifies 5,333 MBps data transfer.
How much data can DDR3-1333 transfer per second?
a. 6,400 MBps
b. 8,533 MBps
c. 10,667 MBps
d. 12,800 MBps
C. DDR3-1333 is the DDR3 standard that allows for up to 10,667 MBps data transfer rates. DDR3-800 can transfer 6,400 MBps. DDR3-1066 can transfer 8,533 MBps. DDR3-1600 can transfer 12,800 MBps.
Where can you view how much RAM you have in the computer? (Select all that apply.)
○ A. Task Manager
○ B. My Computer
○ C. System Properties
A, C, and D. The BIOS displays what type of RAM you have and the amount. Windows has several locations in which you can discern how much RAM there is, including the Task Manager, System Properties, and System Information. (bc
How should you hold RAM when installing it?
○ A. By the edges
○ B. By the front and back
○ C. With tweezers
○ D. With an Integrated Circuit (IC) puller
A. Hold RAM by the edges to avoid contact with the pins, chips, and circuitry.
You suspect a problem with a memory module; what should you do first?
○ A. Replace the module with a new one.
○ B. Install more RAM.
○ C. Clean the RAM slot.
○ D. Test the RAM with MemTest86.
C. Clean the RAM slot and memory module. Consider using compressed air or the proper spray (such as Stabilant 22a). (d
If a BSOD occurs, what should you do?
○ A. Replace all the RAM
○ B. Re-install the operating system.
○ C. Check the RAM settings in the BIOS.
○ D. Wait for it to happen again.
D. A singular BSOD doesn't necessarily mean that the RAM or any other components have gone bad. Often, a single BSOD occurs, but you never see it again. You want to see two or more of the same error before starting into a lengthy troubleshooting session!
You just upgraded a PC's motherboard and CPU. However, when you turn the computer on, it will not POST. What should you do first?
○ A. Check that the system hasn't overheated.
○ B. Check if the RAM is properly seated.
○ C. Check that the OS was installed properly.
○ D. Check if the mouse and keyboard are connected properly.
B. The first thing you should do is check if the RAM is seated properly. This is easier than troubleshooting the CPU or motherboard and is a more common culprit due to the amount of force it takes to install DIMMs. A system will not have enough time to overheat before it gets to the POST. The OS hasn't even started yet, so you can rule that out. Mice and keyboards don't play a part in a system not posting. (d?
You just investigated a computer that is suffering from intermittent shutdowns. You note that the RAM modules are overheating. What is the best solution?
○ A. Install a heat sink on the memory controller.
○ B. Install more CPU fans.
○ C. Install heat sinks on the RAM modules.
○ D. Install a heat sink on the chipset.
C. The best thing to do in this situation is to install heat sinks on the RAM modules. On older computers the memory controller in a northbridge doesn't usually overheat because it already has a heat sink; on newer computers it is within the CPU. A CPU can have only one fan. You can't install more; although an additional case fan might help. The chipset also usually has a heat sink.
You just installed new, compatible RAM into a motherboard, but when you boot the computer it does not recognize the memory. What should you do?
○ A. Flash the BIOS.
○ B. Replace the RAM.
○ C. Upgrade the CPU.
○ D. Add more RAM.
A. If you are sure that the RAM is compatible and the system doesn't recognize it during POST, try flashing the BIOS. It could be that the RAM is so new that the motherboard doesn't have the required firmware to identify the new RAM.