CompTIA Updated 220-1201 Exam Questions and Answers by montgomery

A workstation running three high-end GPUs requires a power supply capable of both high wattage and stable, reliable output. In CompTIA A+ power supply fundamentals, modularity and redundancy are emphasized for high-performance and mission-critical systems.

Modularity (B) allows the technician to connect only the necessary cables, reducing clutter, improving airflow, and enabling proper cable routing to multiple GPUs. High-end graphics cards require multiple PCIe connectors, and modular PSUs provide the flexibility to attach the exact number of required GPU power cables. This is important for systems where space management and cooling efficiency directly affect performance and component longevity.

Redundancy (D) is critical for mission-critical workstations used for 3-D modeling and rendering. A redundant power supply ensures that if one PSU module fails, the system continues running without interruption. CompTIA A+ highlights redundancy as a key feature in professional environments where uptime is essential. These systems typically use dual hot-swappable power modules to guarantee continuous power delivery.

The other options do not meaningfully address the requirements. A 12V output is standard on all PSUs. A 20-pin connector is outdated; modern motherboards use 24-pin. The 3.3V rail is not relevant to GPU loads, and 240 VAC input only refers to wall power compatibility, not PSU capability. Therefore, modularity and redundancy best meet the workstation’s needs.

Intermittent connectivity issues with network printers are commonly caused by changing IP addresses when using DHCP. Assigning a static IP address ensures that the printer is always reachable at the same IP address by client machines.

Paper jams and smudging in high-volume printers are often caused bydirty or worn rollers. Rollers are responsible for feeding the paper through the printer. Over time, they accumulate dust, toner residue, or wear out, resulting in misfeeds or jams. Cleaning or replacing them typically resolves this issue.

Option A (Factory reset):A full reset does not directly address mechanical issues like dirty rollers or smudging. It’s a last resort and more relevant to configuration or software-related issues.

Option C (Change toner cartridges):While toner quality can affect print quality, it won’t usually cause jams or widespread smudging unless the cartridge is leaking which is less likely across multiple users.

Option D (Replace the fuser):A damaged fuser could cause smudging, but this is typically after extensive use and is not the first thing to check. Fuser issues also usually present more persistent, uniform smudges.

CompTIA A+ Core 1 Exam Objective Reference:

Objective 3.7: Given a scenario, troubleshoot common printer problems.

Mobile devices can share their LTE or cellular data connection using a feature called tethering, more commonly known as hotspot mode. According to CompTIA A+ objectives on mobile networking technologies, a hotspot allows a smartphone or tablet to become a mini wireless router, broadcasting a Wi-Fi signal that nearby devices can connect to. The LTE (or 5G) connection is then shared over Wi-Fi, enabling laptops, tablets, or other phones to access the internet through the mobile device.

Bluetooth is capable of tethering but provides much lower bandwidth and slower speeds—not ideal for sharing LTE widely. NFC is used for close-range data exchange or payment transactions and cannot share internet service. "Cellular" refers to the phone’s own mobile network connection, not the mechanism for sharing it with others.

Hotspot functionality is specifically built into modern mobile OSs and supports WPA2/3 encryption, password protection, and device whitelisting. This makes it the most common and efficient method to share LTE connectivity with multiple nearby devices.

Thus, Hotspot (D) is the correct answer.