220-1201 Exam Dumps - CompTIA A+ Core 1Exam (2025)

Reasoning: A cable tester capable of testing Power over Ethernet (PoE) functionality can verify whether the switchport is providing the required power to the phone. This tool measures both the presence of data and the voltage or wattage being provided through the Ethernet cable.

This is the most effective way to confirm that PoE is available on the port.

Why the Other Options Are Incorrect:

A. Network tap:

A network tap is primarily used to monitor network traffic, not to test for PoE availability. It cannot verify if power is being supplied through the Ethernet cable.

C. Loopback plug:

A loopback plug is used to test the functionality of a network port by creating a loop for transmitted and received signals. It does not measure or verify PoE availability.

D. Toner probe:

A toner probe is used for tracing and identifying network cables. It cannot test for PoE functionality.

Practical Example:

A PoE phone might not turn on due to a misconfigured or faulty switchport. Using a cable tester capable of measuring PoE would help the technician determine if the switchport is supplying sufficient power to the phone.

CompTIA A+ Exam Objective Alignment:

Objective 2.1: Identify common networking hardware and tools, including PoE-enabled devices and cable testers.

Comprehensive and Detailed Explanation From Exact Extract:

Physical damage from dropping a tablet may often affect ports or connectors. Before taking deeper diagnostic or replacement steps, it's important to visually inspect the USB-C charging port for damage or debris. If the port is damaged, charging issues can occur regardless of battery health.

📚Reference: "CompTIA A+ All-in-One Exam Guide, 11th Edition" by Mike Meyers – Chapter 25, "Maintaining and Securing Mobile Devices", page 879.

Comprehensive and Detailed In-Depth Explanation:

Adocking stationconnects to a laptop’sproprietary port or USB-C/Thunderbolt, providing access tomultiple additional ports(USB, Ethernet, video, audio, etc.). It allows users to transform a laptop into a full desktop workstation.

Option A (NFC adapter):Used for short-range communication, not port expansion.

Option C (Port replicator):Similar to a dock but usually less powerful and often lacks charging or video output.

Option D (USB dongle):Adds a single function (like Wi-Fi or storage), not full port expansion.

CompTIA A+ Core 1 Exam Objective Reference:

Objective 1.4: Given a scenario, configure settings and use cases for laptops and mobile devices.

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Comprehensive and Detailed In-Depth Explanation:

Asandboxis an isolated virtual environment used totest or run applications securelywithout risk to the host or network. It prevents the VM from communicating with external systems, making it ideal for testing malware or suspicious software.

Option A (VDI):Virtual Desktop Infrastructure allows network communication; it does not restrict it.

Option B (Private cloud):Refers to a cloud deployment model, not a communication barrier.

Option D (Type 1 hypervisor):Runs VMs directly on hardware and doesnotinherently block communication.

CompTIA A+ Core 1 Exam Objective Reference:

Objective 4.1: Compare and contrast cloud computing concepts.

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Color gamut refers to the range of colors a display can accurately reproduce. For tasks like graphic design or photo editing, ensuring the screen's colors match the printed output is critical. Monitors with wide and accurate color gamuts (e.g., Adobe RGB) are preferred for these applications.

Option B (Pixel density): Incorrect. Pixel density affects image sharpness, not color accuracy.

Option C (Refresh rate): Incorrect. Refresh rate impacts motion smoothness but is unrelated to color matching.

Option D (Resolution): Incorrect. Resolution determines clarity and detail but does not influence color accuracy.

Check the exhibit diagram for both parts.

A close-up of several cables AI-generated content may be incorrect.

Part 2

A group of different colored rectangular objects AI-generated content may be incorrect.