Q1. Which mobile device feature allows wireless charging?
- A.NFC
- B.Qi✓ Correct
- C.LiDAR
- D.eSIM
Explanation: Qi is the wireless charging standard. Learn more.
CompTIA PenTest+ Practice Questions: Mobile Devices
12 free, exam-style CompTIA PenTest+ (PT0-003) practice questions covering Mobile Devices. Each question shows the correct answer and a clear explanation. Ready for the real thing? Take the full timed quiz below.
Q2. Which mobile OS uses Face ID?
- A.Android
- B.iOS✓ Correct
- C.Windows Mobile
- D.BlackBerry
Explanation: Face ID is Apple's facial recognition. Learn more.
Q3. What is the first step when replacing a laptop keyboard?
- A.Remove the battery
- B.Ground yourself
- C.Backup data
- D.Disconnect power✓ Correct
Explanation: Always disconnect power first. Learn more.
Q4. Which smartphone feature requires a eSIM?
- A.Dual SIM support✓ Correct
- B.NFC payments
- C.Water resistance
- D.Wireless charging
Explanation: eSIM allows multiple carrier profiles. Learn more.
Q5. Which battery type is used in modern laptops?
- A.Ni-Cad
- B.Li-ion✓ Correct
- C.Lead-acid
- D.Alkaline
Explanation: Lithium-ion offers high energy density. Learn more.
Q6. Which smartphone feature requires a eSIM?
- A.Dual SIM support✓ Correct
- B.NFC payments
- C.Water resistance
- D.Wireless charging
Explanation: eSIM allows multiple carrier profiles without physical SIM cards. Learn more.
Q7. Which battery type is used in modern laptops?
- A.Ni-Cad
- B.Li-ion✓ Correct
- C.Lead-acid
- D.Alkaline
Explanation: Lithium-ion batteries offer high energy density. Learn more.
Q8. Which mobile OS uses Face ID for authentication?
- A.Android
- B.iOS✓ Correct
- C.Windows Mobile
- D.BlackBerry
Explanation: Apple's Face ID uses TrueDepth camera mapping. Learn more.
Q9. What is the first step when replacing a laptop keyboard?
- A.Remove the battery
- B.Ground yourself
- C.Backup data
- D.Disconnect power✓ Correct
Explanation: Always disconnect power sources before hardware work. Learn more.
Q10. What NFC technology enables mobile payments?
- A.RFID
- B.Bluetooth
- C.EMV
- D.HCE✓ Correct
Explanation: Host Card Emulation (HCE) allows contactless payments via NFC. Learn more.
Q11. Which component converts DC to AC in a laptop?
- A.Inverter✓ Correct
- B.Rectifier
- C.Transformer
- D.VRM
Explanation: Inverters power CCFL backlights in older LCD screens. Learn more.
Q12. Which mobile OS uses APK files?
- A.iOS
- B.Android✓ Correct
- C.Windows Mobile
- D.BlackBerry
Explanation: Android Package Kit (APK) is Android's app format. Learn more.