CompTIA A+ emphasizes virtualization as an ideal solution during system phase-out or transition periods. The correct approach here is a P2V (physical-to-virtual) conversion and hosting the server in an Infrastructure as a Service (IaaS) environment. This removes the need for physical hardware while still keeping the application operational for its final year. IaaS provides full control over OS and applications, making it suitable for legacy systems that cannot be rewritten.

Colocation (Option A) still requires physical hardware. PaaS (Option C) is inappropriate because PaaS requires rewriting or replatforming the application. Shutting down the server after a backup (Option D) makes the application immediately unusable.

Thus, the best method is to convert to a virtual machine and host it on IaaS.

NVMe (Non-Volatile Memory Express) drives commonly use the M.2 interface and provide the highest performance for SSDs.

From CompTIA A+ 220-1101 Official Study Guide, Objective 3.2 – Storage devices:

“NVMe drives connect via the M.2 slot and provide the fastest data transfer rates available for storage devices.”

Verified Source:

CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 3: Storage Technologies

CompTIA Exam Objectives 220-1101, Domain 3.2

Fiber is the best option when the goal is the fastest possible network speeds between nearby locations. In CompTIA A+ Core 1 networking, fiber-optic cabling (single-mode or multimode) provides the highest bandwidth capacity and supports very high data rates over longer distances compared with copper media. Fiber is also highly resistant to electromagnetic interference (EMI) because it transmits data as light rather than electrical signals, which improves reliability and signal quality—especially in environments with motors, fluorescent lighting, or other sources of interference. For nearby locations (such as buildings on the same campus), fiber is commonly used for backbone links and uplinks between switches because it delivers excellent throughput and can scale to higher speeds as equipment is upgraded.

DSL is limited by telephone-line quality and distance from the provider’s equipment, and it is typically much slower than fiber. Satellite has higher latency and is not chosen when maximum speed and low delay are required. Coaxial can support broadband and some high-speed links, but it generally offers less bandwidth, more susceptibility to noise than fiber, and is not the top choice for highest-speed interconnection when fiber is available.

An NVMe port, typically implemented through an M.2 slot, is designed specifically for NVMe-based solid-state drives (SSDs). CompTIA A+ explains that NVMe (Non-Volatile Memory Express) is a high-performance storage protocol that communicates directly with the CPU over PCIe lanes, offering significantly faster read/write speeds compared to SATA-based SSDs.

SATA drives (A) connect via SATA ports, not NVMe/M.2 PCIe slots. SAS drives (C) are enterprise-level storage devices requiring SAS controllers and are incompatible with consumer desktop motherboards. Optical drives (D) use SATA or USB interfaces and cannot be installed in an NVMe slot.

Thus, the only device designed for and compatible with an NVMe slot is a solid-state drive (SSD) using the NVMe protocol.

If only one print job fails and others succeed, it is often due to a paper type or tray selection mismatch for that specific job. If a print job is configured to use a tray that is empty or set to manual feed, it will not be released until resolved.

From CompTIA A+ 220-1101 Official Study Guide, Objective 4.3 – Printer troubleshooting:

“If a specific print job stalls while others succeed, check the job settings for specific tray or paper type configurations that do not match the printer’s current setup.”

Verified Source:

CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 4: Printer Troubleshooting

CompTIA Exam Objectives 220-1101, Domain 4.3

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Amodular power supplyallows a technician toconnect only the power cables that are needed, reducing clutter and improving airflow. This is ideal when aiming for a clean build withminimal visible internal cables.

Option A (SATA drive connections):Still require both power and data cables, adding to cable count.

Option B (Liquid cooling):May reduce some bulk from large air coolers, but adds tubing and still needs cabling.

Option D (Wireless NIC):Adds wireless capability but has no relation to internal cabling cleanliness.

CompTIA A+ Core 1 Exam Objective Reference:

Objective 3.3: Given a scenario, apply the appropriate PC configuration.

TPM 2.0 (Trusted Platform Module) is often disabled by default in the UEFI BIOS. Enabling it is necessary to meet the requirements for certain Windows installations, including Windows 11.

Why Not B (Install an HSM): A Hardware Security Module (HSM) is a separate device used for cryptographic functions and is not related to TPM on the motherboard.

Why Not C (Perform a clean install): A clean installation will not bypass the TPM 2.0 requirement.

Why Not D (Implement BitLocker): BitLocker requires TPM but does not resolve its absence or lack of activation.

CompTIA A+ Exam Reference: Core 1 (220-1201), Section 3.4, BIOS/UEFI configuration​.

B. PAN (Personal Area Network):

A PAN is a network established between devices in close proximity, such as between a smartphone and a Bluetooth headset.

Bluetooth technology is specifically designed for short-range communication, making it a type of PAN.

Incorrect Options:

A. MAN (Metropolitan Area Network): A MAN covers a city or metropolitan area and is not relevant to Bluetooth connections.

C. SAN (Storage Area Network): A SAN is used for large-scale data storage, unrelated to Bluetooth connections.

D. WAN (Wide Area Network): A WAN spans large geographical areas (e.g., the internet) and is not relevant to this scenario.

Key Takeaway: Bluetooth connections, such as those between a headset and a device, create a Personal Area Network (PAN).

The correct answer is D. Channel width.

According to CompTIA A+ Core 1 220-1201 objectives under Networking and Wireless:

Channel width refers to the size of the frequency band used for Wi-Fi communication.

Increasing channel width (e.g., from 20 MHz to 40 MHz, 80 MHz, or 160 MHz) allows more data to be transmitted at once, effectively increasing wireless throughput speed.

Why the other options are incorrect:

A. Licensed bands: Licensed spectrum is used for certain types of communication and does not directly increase Wi-Fi throughput.

B. Maximum transmission unit (MTU): MTU defines the largest packet size transmitted over a network but is not the primary factor for increasing Wi-Fi throughput.

C. Transmit power: Adjusting transmit power affects signal range and coverage but does not significantly increase throughput; it may improve connectivity but not data rates.

Because the smudges are not in the original document, CompTIA A+ troubleshooting logic indicates the problem is occurring inside the print process, not in the application or file. For laser printers, smudging commonly points to an issue with the imaging components—especially the drum/photoconductor unit (and sometimes the fuser). A+ Core 1 (220-1201) printer troubleshooting emphasizes starting with the most likely, easiest-to-verify causes before replacing parts. Inspecting the drum is a diagnostic step that can reveal visible defects such as scratches, toner buildup, contamination, or worn surfaces that cause toner to transfer incorrectly, leading to streaks or smears on output.

Replacing the toner (D) is a corrective action and may be unnecessary if the drum is damaged. Changing paper type (A) can help with some issues (like poor fusing or humidity-related problems), but it’s less directly tied to consistent smudges caused by the imaging process. Firmware updates (C) are rarely the first step for print-quality defects; they’re more relevant to compatibility, bugs, or feature issues—not physical smearing. Therefore, inspecting the printer drum first best matches A+ methodology and common laser printer failure points.