A+ 220-701 And 220-702 Ch6
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This quiz, titled 'A+ 220-701 and 220-702 CH6', assesses knowledge on various types of memory crucial for computing, such as RAM, SRAM, and SDRAM. It covers memory characteristics, configurations, and reliability methods, essential for anyone preparing for the CompTIA A+ certification.
- 1.
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
Correct Answer
C. RAMExplanation
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.Rate this question:
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- 2.
Which type of memory chip is much bulkier and more expensive than DRAM?
- A.
SDRAM
- B.
SRAM
- C.
DRAM
- D.
DDR
Correct Answer
B. SRAMExplanation
SRAM or Static RAM is bulkier and more expensive than DRAM because it does not require electricity as often as DRAM.Rate this question:
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- 3.
What type of RAM must be installed in pairs?
- A.
DDR
- B.
SDRAM
- C.
DDR2
- D.
Rambus
Correct Answer
D. RambusExplanation
Rambus memory that uses 32-bit RIMMs must use pairs, and unused sockets must be occupied by a continuity module.Rate this question:
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- 4.
Which type of memory was the first to run in sync with the memory bus?
- A.
DDR2
- B.
SDRAM
- C.
SRAM
- D.
Rambus
Correct Answer
B. SDRAMExplanation
SDRAM was the first memory type that was in sync with the motherboard’s memory bus.Rate this question:
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- 5.
Name the two methods that are used to protect the reliability of memory.
- A.
Parity-Checking
- B.
System checking
- C.
ECC (error-correcting code)
- D.
Smart checking
Correct Answer(s)
A. Parity-Checking
C. ECC (error-correcting code)Explanation
These two methods have an additional memory chip added for parity.Rate this question:
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- 6.
Most types of desktop memory modules use which kind of memory?
- A.
Unbuffered memory
- B.
No memory
- C.
SIMM Module
- D.
Stable memory
Correct Answer
A. Unbuffered memoryExplanation
Unbuffered memory is used in most desktop computers sold in the market. This kind of memory is also used in some servers and workstations.Rate this question:
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- 7.
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
Correct Answer
A. ECC memoryExplanation
ECC memory enables the system to correct single-bit errors and notify you of larger errors.Rate this question:
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- 8.
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
Correct Answer(s)
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.Explanation
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.Rate this question:
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- 9.
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
Correct Answer
B. OverclockingExplanation
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.Rate this question:
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- 10.
Which of the following are types of metal used for contacts on SIMMs? (Choose two.)
- A.
Tin
- B.
Copper
- C.
Zinc
- D.
Gold
Correct Answer(s)
A. Tin
D. GoldExplanation
The two types of metal that are used as contacts on SIMMs are gold and tin. Placing gold connectors in a tin socket and vice versa are most likely to see corrosion and eventual system lockups.Rate this question:
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- 11.
Which of the following are utilities that are used to check memory? (Choose all that apply.)
- A.
CheckIT
- B.
AMIDiag
- C.
RAMExam
- D.
All of these options are correct
Correct Answer
D. All of these options are correctExplanation
CheckIT, AMIDiag, and RAMExam can all be used to test memory.Rate this question:
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- 12.
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
Correct Answer
D. All these options are correctExplanation
All of these can be done to help prevent any memory issues, such as overheating.Rate this question:
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- 13.
Which of the following statements are correct about DDR3 memory? (Choose all that apply.)
- 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
Correct Answer
B. DDR3 and DDR2 both use 240-pin connectorsExplanation
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.Rate this question:
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Jun 21, 2024Quiz Edited by
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Aug 02, 2011Quiz Created by
Pikapika