220-1201 Mobile Device Accessories Practice Question
This 220-1201 practice question tests your understanding of mobile device accessories. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A technician is setting up a mobile workstation for a graphic designer who uses a laptop with a USB-C port that supports Thunderbolt 3. The designer needs to connect two 4K monitors, a wired Ethernet connection, and charge the laptop simultaneously. Which accessory should the technician choose?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
A Thunderbolt 3 docking station
A Thunderbolt 3 docking station provides high bandwidth (40 Gbps) to support dual 4K displays, Ethernet, and power delivery over a single cable. A USB-C hub may not have enough bandwidth for dual 4K output, and a USB-C to HDMI adapter alone cannot provide Ethernet or charging. A KVM switch is for sharing peripherals between computers, not for this purpose.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
A USB-C to dual HDMI adapter
Why it's wrong here
This adapter may output video but lacks Ethernet and power delivery, requiring additional accessories.
✓
A Thunderbolt 3 docking station
Why this is correct
Thunderbolt 3 docks offer high bandwidth, dual 4K support, Ethernet, and power delivery, meeting all requirements.
Related concept
Read the scenario before looking for a memorised answer.
✗
A USB 3.0 hub with HDMI and Ethernet
Why it's wrong here
USB 3.0 hubs have limited bandwidth (5 Gbps) and may not support dual 4K monitors at full resolution.
✗
A KVM switch
Why it's wrong here
A KVM switch allows controlling multiple computers but does not add ports or power delivery to a single laptop.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Trap categories for this question
Command / output trap
This adapter may output video but lacks Ethernet and power delivery, requiring additional accessories.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the 220-1201 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this 220-1201 question in full detail.
Identify which 220-1201 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Mobile Device Accessories — This question tests Mobile Device Accessories — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: A Thunderbolt 3 docking station — A Thunderbolt 3 docking station provides high bandwidth (40 Gbps) to support dual 4K displays, Ethernet, and power delivery over a single cable. A USB-C hub may not have enough bandwidth for dual 4K output, and a USB-C to HDMI adapter alone cannot provide Ethernet or charging. A KVM switch is for sharing peripherals between computers, not for this purpose.
What should I do if I get this 220-1201 question wrong?
Identify which 220-1201 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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