Dell EMC Associate – PowerEdge Server Specialist — Question 17

Which error control technique is used by ECC memory?

Answer options

• A. Repetition codes
• B. Hamming code
• C. Checksums
• D. Cryptographic hash functions

Correct answer: B

Explanation

ECC memory utilizes Hamming code for error detection and correction, making option B the correct answer. Repetition codes (A) are simpler and less efficient for memory applications, while checksums (C) and cryptographic hash functions (D) are primarily used for data integrity verification rather than error correction.