- A
A USB-C hub with Bluetooth functionality to extend range.
Why wrong: A USB-C hub with Bluetooth can help, but it is not strictly necessary if the tablet has built-in Bluetooth and the devices are within typical range.
- B
A Bluetooth adapter plugged into the tablet's charging port.
Why wrong: Most tablets already have Bluetooth; an external adapter is redundant and may not improve range significantly.
- C
A Bluetooth extender or repeater to boost signal strength.
This is correct; a Bluetooth extender can increase the effective range, ensuring reliable connection from across the room.
- D
A wireless dongle that connects both keyboard and mouse via a single receiver.
Why wrong: This would work for non-Bluetooth devices, but the customer specifically wants Bluetooth devices, so a dongle is unnecessary.
Bluetooth Keyboard and Mouse Range Extender for Tablet
This 220-1201 practice question tests your understanding of mobile device accessories. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 customer wants to connect a Bluetooth keyboard and mouse to their tablet for a presentation. They ask which accessory is needed to ensure both devices work reliably from across the room. What should you recommend?
Quick Answer
The correct recommendation is a Bluetooth extender or repeater to boost signal strength, as this directly addresses the need for reliable long-range connectivity between the tablet and the Bluetooth keyboard and mouse. While most tablets already have built-in Bluetooth, the standard Class 2 Bluetooth radio typically has a range of only about 10 meters (33 feet) and can be weakened by walls or interference, so a Bluetooth extender amplifies the signal to ensure stable performance from across a large room. On the CompTIA A+ Core 1 220-1201 exam, this scenario tests your understanding of wireless range limitations and the difference between a Bluetooth adapter (which adds Bluetooth to a device lacking it) and an extender (which boosts an existing signal). A common trap is confusing “adapter” with “extender,” so remember: if the tablet already has Bluetooth, you only need an extender for range, not an adapter. Memory tip: “Extend the range, don’t adapt the change.”
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
A Bluetooth extender or repeater to boost signal strength.
Option C is correct because Bluetooth range is typically limited to about 10 meters (33 feet) under ideal conditions, and obstacles like walls or furniture can reduce this further. A Bluetooth extender or repeater captures the signal from the tablet and retransmits it, effectively boosting the signal strength and extending the reliable operating distance across a room. This ensures both the keyboard and mouse maintain a stable connection without dropouts.
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 hub with Bluetooth functionality to extend range.
Why it's wrong here
A USB-C hub with Bluetooth can help, but it is not strictly necessary if the tablet has built-in Bluetooth and the devices are within typical range.
- ✗
A Bluetooth adapter plugged into the tablet's charging port.
Why it's wrong here
Most tablets already have Bluetooth; an external adapter is redundant and may not improve range significantly.
- ✓
A Bluetooth extender or repeater to boost signal strength.
Why this is correct
This is correct; a Bluetooth extender can increase the effective range, ensuring reliable connection from across the room.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
A wireless dongle that connects both keyboard and mouse via a single receiver.
Why it's wrong here
This would work for non-Bluetooth devices, but the customer specifically wants Bluetooth devices, so a dongle is unnecessary.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse adding Bluetooth functionality (via a hub or adapter) with extending range, but the exam tests the understanding that Bluetooth range is limited by radio power and that a repeater is specifically designed to overcome distance limitations.
Detailed technical explanation
How to think about this question
Bluetooth operates in the 2.4 GHz ISM band using frequency-hopping spread spectrum (FHSS) with 79 channels (in classic Bluetooth) or 40 channels (in BLE). A Bluetooth extender or repeater acts as a relay, receiving the signal on one channel and retransmitting on another, which can double the effective range to about 20-30 meters in open space, but introduces latency and potential interference. In a real-world scenario, a presenter moving around a large conference room might experience dropouts at 15 meters without a repeater, especially if the tablet is placed behind a podium.
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.
TExam Day Tips
- 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 security administrator must allow nursing staff to reach a patient records server while blocking access from the guest Wi-Fi VLAN. After applying an extended ACL, traffic is still blocked from nursing workstations. The ACL was applied outbound instead of inbound on the wrong interface. Questions like this test ACL direction and placement rules.
What to study next
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FAQ
Questions learners often ask
What does this 220-1201 question test?
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 Bluetooth extender or repeater to boost signal strength. — Option C is correct because Bluetooth range is typically limited to about 10 meters (33 feet) under ideal conditions, and obstacles like walls or furniture can reduce this further. A Bluetooth extender or repeater captures the signal from the tablet and retransmits it, effectively boosting the signal strength and extending the reliable operating distance across a room. This ensures both the keyboard and mouse maintain a stable connection without dropouts.
What should I do if I get this 220-1201 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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