220-801 Question #909: Real Exam Question with Answer & Explanation

The correct answer is B: The capability of error correction. ECC stands for Error-Correcting Code. ECC memory includes extra bits and dedicated circuitry that can automatically detect and correct single-bit memory errors in real time, and detect (but not always correct) multi-bit errors. This is critical in servers and workstations where d

Question

ECC memory offers which advantage over non-ECC memory?

Options

ALess energy consumption
BThe capability of error correction
CMore efficient core communication
DBroader BUS throughput

Explanation

ECC stands for Error-Correcting Code. ECC memory includes extra bits and dedicated circuitry that can automatically detect and correct single-bit memory errors in real time, and detect (but not always correct) multi-bit errors. This is critical in servers and workstations where data integrity is paramount, as memory errors can cause data corruption or system crashes. ECC memory does not offer advantages in energy consumption (A), core communication efficiency (C), or bus throughput (D) - in fact, ECC memory can be marginally slower than non-ECC due to the overhead of error checking. Its sole defining advantage is error detection and correction.

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