hardMultiple ChoiceObjective-mapped
220-1201 Practice Question: A technician is configuring a kiosk tablet that…
A technician is configuring a kiosk tablet that must connect to a wired Ethernet network for security reasons. The tablet only has a USB-C port. The network drop provides an RJ45 connection. Which of the following should the technician use to achieve a wired connection?
⚠ Common exam trap
CompTIA often tests the candidate's ability to identify the most direct and appropriate adapter for a given port and purpose, trapping those who overcomplicate the solution by stacking adapters (like Option B) when a single-purpose adapter exists.
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
✓
USB-C to Ethernet adapter
The tablet has a USB-C port and needs to connect to an RJ45 Ethernet network. A USB-C to Ethernet adapter directly converts the USB-C signal to a standard RJ45 Ethernet connection, providing a wired network interface without additional adapters or protocol conversions. This is the simplest and most reliable solution for achieving a wired Ethernet connection from a USB-C-only device.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
USB-C to HDMI adapter
Why it's wrong here
A USB-C to HDMI adapter is designed exclusively for transmitting high-definition digital video and audio signals from a USB-C enabled device to an HDMI display. While USB-C supports DisplayPort Alternate Mode, which can be converted to HDMI, this adapter contains no network interface controller (NIC) hardware and therefore cannot provide an Ethernet network connection. Its sole function is display output, making it unsuitable for establishing wired network connectivity.
- ✗
USB-C to USB-A adapter with a USB Ethernet dongle
Why it's wrong here
Using a USB-C to USB-A adapter with a USB Ethernet dongle introduces an additional USB-A conversion layer that the tablet’s single USB-C port may not support for Ethernet, as many tablets lack the necessary USB host controller drivers for that daisy-chained topology. This option is tempting because it is a common solution for connecting Ethernet to a laptop that has a USB-A port, and it would be correct if the tablet had a USB-A port instead of only USB-C.
- ✓
USB-C to Ethernet adapter
Why this is correct
A USB-C to Ethernet adapter contains an integrated network interface controller (NIC) that communicates with the tablet's operating system via the USB-C port's data lines. This adapter translates USB data packets into standard Ethernet frames and vice-versa, providing a reliable, high-speed wired network connection through a standard RJ45 port. This direct conversion is essential for stable and secure network access, particularly for kiosk applications requiring consistent connectivity.
- ✗
USB-C to DisplayPort adapter
Why it's wrong here
A USB-C to DisplayPort adapter is specifically engineered to output video and audio signals from a tablet's USB-C port, utilizing DisplayPort Alternate Mode, to a monitor or projector that supports DisplayPort input. Similar to HDMI, DisplayPort is a digital display interface standard and fundamentally lacks any integrated circuitry or protocol for establishing a wired Ethernet network connection. Its function is solely for visual output, not network communication.
Go deeper
Related to this question
Learn chapter
Mobile Device Types and Features
Key term
Tablet
A tablet is a portable computing device with a touchscreen interface, typically larger than a smartphone but smaller than a laptop, used for browsing, media consumption, and light productivity tasks.
Key term
Interface
An interface is a point of connection or interaction between two systems, devices, or software components that allows them to exchange information or signals.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.