The correct answer is C. ECC (Error-Correcting Code).
In the CompTIA A+ Core 1 (220-1201) hardware objectives, RAM types and features include technologies designed to improve reliability and data integrity.
ECC memory is specifically designed to detect and correct data errors (faults) in memory automatically. It uses additional bits to store error-checking information, allowing the system to:
Automatically correct errors without system interruption
Improve system stability, especially in servers and critical systems
This makes ECC the best choice for recovering from data faults.
Why the other options are incorrect:
A. Capacity
Capacity refers to how much data the RAM can hold (e.g., 8GB, 16GB). It has nothing to do with error detection or correction.
B. Speed
Speed (measured in MHz or MT/s) affects performance but does not provide any fault recovery capability.
D. DDR
DDR (Double Data Rate) refers to the generation/type of RAM (e.g., DDR3, DDR4, DDR5). It improves performance but does not handle errors.
E. Parity
Parity memory can detect errors but cannot correct them. Since the question specifically asks for recovery from faults, ECC is the correct answer because it both detects and corrects errors.
Final Answer: C. ECC
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