hardMultiple ChoiceObjective-mapped
220-1201 Practice Question: That their smartphone's mobile hotspot works for…
A user reports that their smartphone's mobile hotspot works for a few minutes, then the connected laptop loses internet access, but the smartphone still shows a cellular data connection. The hotspot remains enabled. What is the most likely cause?
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
✓
The carrier is throttling the hotspot data after a usage threshold.
Carrier throttling can reduce data speeds after a certain amount of data is used, making the connection too slow for practical use. This is common on unlimited plans that throttle after a threshold, and the hotspot may still appear active but with severely limited throughput.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The smartphone's battery saver mode is limiting hotspot performance.
Why it's wrong here
The smartphone's battery saver mode typically reduces background app activity, sync frequency, and CPU performance to conserve power. While it might slightly reduce the maximum throughput of the hotspot, it is highly unlikely to cause a complete cessation of data transfer after a few minutes while the hotspot remains enabled and the phone still has general data connectivity. Battery saver modes prioritize extending battery life, not intentionally cutting off active data connections.
- ✓
The carrier is throttling the hotspot data after a usage threshold.
Why this is correct
Many mobile carriers implement specific data allowances for mobile hotspot usage, which are often separate from or a subset of the phone's general data plan. Once this usage threshold is met, the carrier intentionally reduces (throttles) the hotspot's connection speed to a very low rate, making it practically unusable for loading web pages or streaming, even though the hotspot connection itself remains active. This behavior perfectly matches the symptom of data stopping after a few minutes while the hotspot is still enabled and the phone has data.
- ✗
The laptop's Wi-Fi adapter is overheating.
Why it's wrong here
If the laptop's Wi-Fi adapter were overheating, it would typically lead to intermittent disconnections, complete loss of Wi-Fi connectivity on the laptop, or even system instability, affecting all Wi-Fi networks. The scenario describes the smartphone's hotspot as remaining enabled and the smartphone itself still having data, indicating the issue is not with the laptop's ability to connect to Wi-Fi, but rather with the data flow from the hotspot specifically.
- ✗
The smartphone is switching to a different cellular band.
Why it's wrong here
Cellular band switching occurs when a smartphone optimizes its connection to a different frequency band for improved signal strength, capacity, or network efficiency. While this process can cause a brief, momentary interruption in data flow, typically lasting only a few seconds, the connection would quickly re-establish. It would not result in the hotspot remaining enabled but inactive for minutes, nor would it selectively affect hotspot data while the phone's own data remains functional.
Go deeper
Related to this question
Learn chapter
Laptop Hardware and Components
Key term
CAN
A CAN (Controller Area Network) is a robust vehicle bus standard designed to allow microcontrollers and devices to communicate with each other without a host computer.
Key term
Laptop
A portable personal computer that integrates a display, keyboard, touchpad, battery, and internal components into a single clamshell device for mobile computing.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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