easyMultiple Choice
220-1201 Practice Question: A technician is installing a new VoIP phone for a…
A technician is installing a new VoIP phone for a user. The user's desk already has a Cat6 wall jack, but the phone requires both network connectivity and a separate power source. The technician has a limited number of power outlets nearby. What is the simplest solution?
⚠ Common exam trap
220-1201 often tests whether candidates overlook PoE as a solution when a power outlet is scarce, instead choosing to run extension cords or wireless bridges that don't address the combined data and power need.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use a Power over Ethernet (PoE) injector between the wall jack and the phone.
Power over Ethernet (PoE) injector allows both data and power to be delivered over the existing Cat6 cable, eliminating the need for a separate power outlet. The injector is placed between the wall jack and the phone, injecting power onto the Ethernet cable. This is the simplest solution because it reuses the existing cabling and requires no new power runs.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Run a new power extension cord from the nearest outlet.
Why it's wrong here
Running a new power extension cord from the nearest outlet is an unprofessional and often non-compliant solution for a permanent installation. Extension cords are typically intended for temporary use and can create tripping hazards, clutter, and potential electrical code violations. This approach does not provide a clean, integrated power solution and fails to meet the standards for a stable, long-term deployment of network infrastructure.
- ✓
Use a Power over Ethernet (PoE) injector between the wall jack and the phone.
Why this is correct
Using a Power over Ethernet (PoE) injector between the wall jack and the phone is the most appropriate solution. A PoE injector actively adds electrical power to the existing Ethernet cable, allowing the VoIP phone to receive both data and power over a single Cat6 cable. This eliminates the need for a separate power adapter at the phone's location, simplifying cabling, reducing clutter, and providing a clean, efficient power delivery method for the device.
- ✗
Replace the Cat6 cable with a USB-C cable for power.
Why it's wrong here
Replacing the Cat6 cable with a USB-C cable for power is fundamentally incorrect for network connectivity. Cat6 cables are specifically designed for Ethernet data transmission, providing the necessary twisted pairs and shielding for network communication. USB-C is a versatile connector primarily used for power delivery and data transfer to peripherals, not for standard Ethernet networking, and would not provide the required network interface for the VoIP phone to function.
- ✗
Install a wireless bridge to eliminate the cable.
Why it's wrong here
Installing a wireless bridge to eliminate the cable is an unsuitable solution for a VoIP phone. While a wireless bridge could provide network connectivity, the VoIP phone itself would still require a separate power source, meaning a power cable would still be necessary. Furthermore, wireless connections can introduce latency, jitter, and potential signal interference, which are detrimental to the quality and reliability of real-time voice communications over VoIP.
Go deeper
Related to this question
About these practice questions
This 220-1201 question is part of Courseiva's 871-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official CompTIA exam blueprint
This 220-1201 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 220-1201 exam.