220-1101 Online Practice Questions

Explanation:
Reinstalling RAM in different slots addresses possible issues with dual-channel configurations. If not installed correctly, the system might not recognize the full capacity. This solution is immediate and doesn’t incur extra costs, unlike replacing hardware. It reflects CompTIA A+ Core 1 exam objectives on hardware troubleshooting, specifically RAM installation and configuration.

Explanation:
A failing power supply can cause random system crashes and degraded performance as it struggles to maintain a consistent voltage, especially as the system demands increase over time. The CMOS battery only affects system time and settings, while the video card typically causes display issues rather than system-wide crashes. System memory issues often result in specific errors or performance issues rather than gradual slowdowns. CompTIA A+ Core 1 objectives highlight troubleshooting power supply issues as part of hardware and system maintenance.

Explanation:
Step by Step Detailed Comprehensive Explanation with All CompTIA
Reference: Analysis of the Problem:
Degraded RAID performance and red light indicate a failed HDD in the array.
Option Evaluation:
A. HDD: Replacing the failed hard drive restores RAID performance. Correct.
B. CPU: Not related to RAID performance. Incorrect.
C. PSU: Power issues wouldn’t cause RAID degradation. Incorrect.
D. RAM: Unrelated to RAID functionality. Incorrect.
Reference: RAID troubleshooting is outlined in Domain 5

Explanation:
One of the possible causes of random and incorrect characters appearing on print jobs sent to a laser printer is an outdated or corrupted driver. The driver is a software component that communicates between the operating system and the printer, and converts data into a format that the printer can understand. If the driver is outdated or corrupted, it may send incorrect or garbled data to the printer, resulting in poor print quality or errors. The technician should update the driver to the latest version from the manufacturer’s website, or uninstall and reinstall it if necessary .
Reference: https://www.comptia.org/training/books/a-core-1-220-1101-study-guide (page 47)

Explanation:
The most likely component that is failing and causing the PC to overheat is D. CPU fan. The CPU fan is a vital part of the cooling system that prevents the CPU from overheating by blowing air over the heatsink and dissipating the heat. If the CPU fan is faulty, noisy, or clogged with dust, it can reduce the airflow and cause the CPU temperature to rise12. This can result in poor performance, instability, or shutdowns of the PC.
The other components are less likely to be the cause of overheating. RAM, motherboard, and SSD do not generate as much heat as the CPU and usually do not require fans to cool them down1. They may overheat if there is poor ventilation in the case or if they are defective, but they are not as common as a failing CPU fan.
Therefore, the correct answer is D. CPU fan. This is the most likely component that is failing and causing the PC to overheat.