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Question

Difficulty: MediumRAM Types and Characteristics

An IT technician is assembling a dedicated network server that requires high-reliability memory capable of detecting and correcting single-bit data errors. The system uses a standard ATX motherboard. Which RAM module type and form factor combination should the technician install?

  1. Unbuffered ECC DDR4 DIMMAnswer
  2. B
    Unbuffered ECC DDR4 SO-DIMM
  3. C
    Non-ECC DDR4 DIMM installed in adjacent channel slots
  4. D
    Non-ECC M.2 SATA memory expansion module

Answer

Unbuffered ECC DDR4 DIMM
Error-Correcting Code (ECC) RAM is specifically designed to detect and correct single-bit memory corruption in enterprise and server environments, while the standard DIMM form factor fits full-size desktop and server motherboards.

Step-by-Step Solution

1
Identify the memory feature requirement for detecting and correcting single-bit memory errors.
Server applications require Error-Correcting Code (ECC) memory to prevent data corruption.
Standard non-ECC RAM cannot detect or correct memory bit flips.
2
Identify the physical form factor requirement for a standard motherboard.
A full-sized ATX server motherboard uses standard dual inline memory module (DIMM) slots.
SO-DIMMs are physically smaller and intended for laptops or mini-PCs.
3
Select the option that satisfies both functional (ECC) and physical (DIMM) criteria.
Unbuffered ECC DDR4 DIMM provides both ECC protection and the standard DIMM form factor.
This combination ensures physical compatibility and meets server fault-tolerance needs.

Key Concept

ECC Memory vs Non-ECC Memory and Form Factor Compatibility
Estimated Time:1m 0s
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Topics

RAM Types and Characteristics

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