CompTIA A+ Core 1 — Practice Exam
1.0 Mobile Devices: practice questions
Our CompTIA A+ Core 1 bank has 29 questions on this topic. Here are 5 of them with answers; the full mock exam draws from every topic, like the real one.
Question 1
What is a common cause of 'no connectivity' after a phone OS update?
- The screen is cracked, which disconnects the antenna from the logic board
- The case is too thick
- Network settings or drivers need resetting or updating
- The battery is new
Show the answer
C. Network settings or drivers need resetting or updating — Toggle airplane mode or reset network settings.
Question 2
Where is the Wi-Fi antenna usually located in a laptop?
- In the power adapter brick, near the transformer
- In the battery
- Under the keyboard
- Around the display (in the lid)
Show the answer
D. Around the display (in the lid) — Antenna wires run through the hinge.
Question 3
What should you do before replacing a laptop component?
- Work on carpet without protection
- Disconnect power, remove the battery if possible, and use ESD protection
- Use a magnetic screwdriver on the board so that screws don't fall into the case
- Leave it plugged in
Show the answer
B. Disconnect power, remove the battery if possible, and use ESD protection — Static electricity can damage components.
Question 4
What is the PRL on a cellular phone?
- Preferred Roaming List, used by some carriers to choose towers
- Phone's encryption key
- Phone's serial number
- Phone's screen resolution
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A. Preferred Roaming List, used by some carriers to choose towers — Updating the PRL can help connectivity on CDMA-era networks.
Question 5
Which storage form factor is common in modern thin laptops?
- 5.25-inch
- IDE
- M.2
- 3.5-inch
Show the answer
C. M.2 — M.2 drives may use SATA or NVMe.