Ghost prints happen when the drum or fuser unit within your printer becomes faulty.

Explanation
Quad-channel memory architecture allows the CPU to access four memory modules simultaneously, increasing the memory bandwidth and performance. DDR4 RAM is a type of memory that has higher speed and lower power consumption than DDR3. SODIMM is a smaller form factor of memory that is typically used in laptops, not desktops. ECC RAM is a type of memory that can detect and correct errors, but it is more expensive and slower than non-ECC RAM. Triple-channel memory architecture is less common and less efficient than quad-channel. References: https://www.comptia.org/certifications/a#examdetails
https://www.comptia.org/blog/what-is-ddr4-ram https://www.comptia.org/blog/what-is-quad-channel-memory

Explanation:
A picture containing text, electronics, printer Description automatically generated

A: AAAA: Used for IPv6. Incorrect.
B: MX: Relates to email servers. Incorrect.
C: CNAME: Provides aliases, not IP mappings. Incorrect.
D: A: Maps hostnames to IPv4 addresses. Correct.
Step by Step Detailed Comprehensive Explanation with All CompTIA Reference:
Analysis of the Problem:
IPv4 records are associated with "A" records in DNS servers.
Option Evaluation:

Upgrading a power supply to add a GPU typically requires more wattage to accommodate the additional power demands. Although the current power supply is 380W, adding a GPU with a six-pin power connector suggests a mid-range graphics card, which would likely need a total system power supply in the range of 450W to ensure adequate power for all components, providing a good balance between capacity and safety margins.
Reference:
CompTIA A+ Core 1 Exam Objectives Section 3.5: Given a scenario, install or replace the appropriate power supply.