100-140 Question 75
Single answerA user reports that their new smartphone is not charging when connected to an older external battery pack using a USB cable. Upon inspection, the cable has a USB-A connector on one end and a Micro USB connector on the other. The smartphone has a USB-C port. What is the most likely reason for this issue?
- A
The USB-A to Micro USB cable is incompatible with the USB-C port on the smartphone.
- B
The external battery pack does not support USB-C charging.
- C
The USB-A connector cannot provide power to the smartphone.
- D
The smartphone's USB-C port is not functioning correctly.
Show answer and explanation
Correct answer: A
Explanation
The issue arises because the user is using a USB-A to Micro USB cable, which is incompatible with the smartphone's USB-C port. To charge the smartphone, the user would need a USB-A to USB-C cable (if using the older battery pack) or a USB-C to USB-C cable (if the battery pack supports USB-C output). This highlights the importance of matching the cable type to the device's port.
- A. Correct.
Correct: The USB-A to Micro USB cable is not compatible with the USB-C port on the smartphone. A USB-C to USB-C or USB-A to USB-C cable is required to connect to the smartphone's USB-C port.
- B. Incorrect.
Incorrect: The external battery pack can likely support USB-C charging if a compatible cable is used. The issue is not with the battery pack but with the cable.
- C. Incorrect.
Incorrect: The USB-A connector can provide power but only if the correct cable is used to match the smartphone's USB-C port.
- D. Incorrect.
Incorrect: While possible, it is unlikely that the smartphone's USB-C port is not functioning correctly, especially if the issue is related to the type of cable used.