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Which options is the MOST accurate when describing ECC memory?

  • A) Controls the processor and PCI cards
  • B) Uses a parity bit to detect errors and alerts the user
  • C) Often used in high traffic servers due to it's increased speed and clock rate
  • D) Can detect and correct errors
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Answer Description

Error Correcting Ram (ECC) is capable of detecting and correcting errors in memory (RAM). It does use parity but does not alert a user if an error is found. It is also common in servers but this is because of it's error correcting capabilities and not due to increased speed or clock rate.

Wikipedia

Error correction code memory (ECC memory) is a type of computer data storage that uses an error correction code (ECC) to detect and correct n-bit data corruption which occurs in memory ECC memory is used in most computers where data corruption cannot be tolerated under any circumstances, like industrial control applications, critical databases, and infrastructural memory caches Typically, ECC memory maintains a memory system immune to single-bit errors: the data that is read from each word is always the same as the data that had been written to it, even if one of the bits actually stored has been flipped to the wrong state

ECC_memory - Wikipedia, the free encyclopedia

A+ 220-901 Objectives

  • Hardware
    • This question is filed here
  • Networking
  • Mobile Devices
  • Hardware and Network Troubleshooting
CompTIA A+ 220-1001 CompTIA A+ 220-1002 CompTIA A+ 220-901 CompTIA A+ 220-902 CompTIA Network+ N10-006 CompTIA Security+ SY0-401 CompTIA Security+ SY0-501
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