A user's smartphone has a swollen battery, causing the back cover to bulge. The device is still functional. What is the MOST appropriate action?

Puncture the battery to release the gas.

Continue using the device until the battery dies completely.

Power off the device and replace the battery immediately.

Place the device in a freezer to shrink the battery.

After replacing a smartphone's Wi-Fi antenna, the technician wants to verify the repair. What is the best way to confirm the issue is resolved?

Run a factory reset to ensure no software conflicts.

Check the antenna's resistance with a multimeter.

Reboot the phone and check if the Wi-Fi icon appears.

Connect to a known-good Wi-Fi network and test internet access.

After resolving a Wi-Fi connectivity issue on a mobile device, what is the best way to confirm the issue is fully resolved?

Verify the device's serial number

Connect to the Wi-Fi network and browse a website

Check the device's storage space

Update the device's date and time settings

After replacing a smartphone's screen, which step is most appropriate to verify the repair was successful?

Test the touchscreen responsiveness and display quality

Update the device's operating system

CompTIAA+ Core 1

Domain 1Objective 4

Troubleshooting 220-1201 Practice Questions (Page 5)

Part of the Mobile devices domain, which accounts for 13% of the 220-1201 exam. CompTIA does not publish an official question count, but from its 90-minute exam (~35–60 total, ~5–8 in this domain), expect 1–2 from this objective — we provide 30 practice questions to prepare you well beyond it. (estimate)

30questions here

6free pages

7concepts

13%of the exam

Questions 21–25

21expert · hard
A user's smartphone has a swollen battery, causing the back cover to bulge. The device is still functional. What is the MOST appropriate action?
Select an answer first
22application · medium
After replacing a smartphone's Wi-Fi antenna, the technician wants to verify the repair. What is the best way to confirm the issue is resolved?
Select an answer first
23foundation · easy
A smartphone can make and receive calls but cannot connect to the internet via the cellular network. Which component is most likely at fault?
Select an answer first
24foundation · easy
After resolving a Wi-Fi connectivity issue on a mobile device, what is the best way to confirm the issue is fully resolved?
Select an answer first
25foundation · easy
After replacing a smartphone's screen, which step is most appropriate to verify the repair was successful?
Select an answer first

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