220-1201 Exam Dumps - CompTIA A+ Core 1 Exam (2026)

In CompTIA A+ Core 1 (220-1201) networking and troubleshooting, a common cause of “can’t reach internal resources” while docked is that the laptop is still using the wireless interface (or has a higher interface priority for Wi-Fi) instead of the docking station’s wired Ethernet connection. If the Wi-Fi network is a guest/isolated VLAN, uses different routing, or has stricter access controls, the user may be blocked from reaching department file servers even though an Ethernet cable is physically connected to the dock. Disabling Wi-Fi is a fast, low-risk step that forces the system to use the wired NIC path through the docking station, which typically provides the correct corporate network access, DHCP scope, and routing to internal servers.

Restarting the computer might help in some cases, but it’s less targeted and not the “best next step” when the likely issue is interface selection. Replacing the Ethernet cable is appropriate if link lights are off or the wired connection is clearly down, but the scenario highlights that the dock has a hardwired connection—suggesting the physical layer may be fine. Dock firmware updates are not a first-line fix for basic connectivity/access symptoms.

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.

The correct answer is A. Loopback plug .

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

A loopback plug is used to test a network interface card (NIC) port by sending a signal out of the port and back into the same port, verifying that the NIC can send and receive data properly .

This is a common diagnostic tool when troubleshooting network connectivity issues on individual devices.

Why the other options are incorrect:

B. Toner probe: Used for tracing and locating cables, not for testing NIC ports.

C. Cable tester: Checks the integrity of network cables but does not verify NIC send/receive functionality.

D. Network tap: Passively monitors network traffic but does not test the NIC port itself.

The correct answer is A. Liquid cooling .

High CPU utilization and intensive graphics workloads generate significant heat. According to CompTIA A+ Core 1 220-1201 hardware objectives, ensuring proper thermal management is crucial for system stability and performance.

Liquid cooling provides more efficient heat dissipation than standard air cooling, allowing CPUs and GPUs to maintain optimal performance under heavy load and preventing thermal throttling. This is especially beneficial in gaming, video editing, rendering, or scientific computation workloads.

Why the other options are incorrect:

B. Advanced RISC : Refers to a type of processor architecture optimized for efficiency and specific instruction sets but does not directly address heat or cooling in high-utilization systems.

C. x86 processor : This is a general processor architecture; while important, it does not mitigate heat or improve cooling under heavy CPU/GPU usage.

D. Hardware security module : Focused on cryptographic operations and secure key storage, unrelated to CPU or GPU thermal management.

The correct answer is D. Router .

According to the CompTIA A+ Core 1 (220-1201) objectives for Networking, routers are devices that operate at Layer 3 (Network layer) and are primarily used to connect multiple networks, including LANs, WANs, and the Internet. Routers use IP addressing to determine the best path for forwarding packets between networks.

Why the other options are incorrect:

A. Controller : Generally refers to a device that manages a network or hardware component but does not inherently connect different networks.

B. Bridge : Connects two segments of the same network, not different networks, and operates at Layer 2 (Data Link layer).

C. Hub : Connects devices within the same network segment, simply repeating signals, and does not perform routing between networks.

The correct answer is B. NVMe SSD .

According to CompTIA A+ Core 1 220-1201 objectives under Hardware and Storage:

NVMe (Non-Volatile Memory Express) SSDs provide the fastest data access and retrieval speeds compared to other storage types, especially on laptops. NVMe SSDs use the PCIe interface, which allows significantly higher throughput and lower latency than SATA-based storage.

This improves boot times, application load times, and overall system responsiveness.

Why the other options are incorrect:

A. SATA M.2: While faster than traditional 2.5” SSDs and HDDs, SATA M.2 is limited by the SATA III interface (~600 MB/s), which is slower than NVMe SSDs (~3,000–7,000 MB/s).

C. Optical disk: Optical media (CD/DVD/Blu-ray) is extremely slow and not suitable for quick access or retrieval.

D. 7,200rpm HDD: Mechanical hard drives have the slowest access times and throughput compared to SSDs.

The correct answer is A. Clean the feed rollers .

According to CompTIA A+ Core 1 220-1201 objectives under Printers:

Frequent paper jams, particularly in high-use shared printers, are commonly caused by dirty or worn feed rollers .

Cleaning the feed rollers removes dust, paper debris, and toner residue that can prevent smooth paper feeding, especially when printing double-sided documents.

This is a standard preventive maintenance procedure that improves reliability and extends the printer’s operational life.

Why the other options are incorrect:

B. Use a different paper weight: A4 standard paper is appropriate; changing paper weight is unnecessary unless the paper is damaged or incompatible.

C. Replace the fuser unit: Fuser problems generally cause smudging or incomplete fusing, not frequent paper jams.

D. Change the toner cartridge: Toner issues affect print quality (light or streaky prints), not paper feeding or jamming.

The correct answer is D. Replace the failed drive .

RAID 6 is a redundant array of independent disks that can tolerate up to two drive failures while still maintaining data integrity. According to CompTIA A+ Core 1 (220-1201) objectives, a red LED on a drive in a RAID array indicates that the drive has failed or is in a critical state.

Next Step: In RAID 6, a single failed drive should be replaced immediately to prevent additional failures and maintain redundancy. The array can continue to operate in a degraded state, but performance may be slow during rebuilds. Replacing the failed drive allows the RAID controller to rebuild data onto the new drive, restoring full redundancy.

Why the other options are incorrect:

A. Reconfigure the RAID array: This would erase existing data; unnecessary if only one drive failed.

B. Run a S.M.A.R.T. test: While useful for diagnosing drive health, the red LED already indicates failure, so immediate replacement is required.

C. Reinstall the controller drivers: This does not address a physically failed drive and would not fix the degraded RAID array.