Practice Test Geeks(CMT) Certified Mobile Tech Practice Test
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CMT Accessories & Peripheral Devices Flashcards

6 cards from real CMT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 CMT Accessories & Peripheral Devices flashcards as text

  1. What is the recommended method for cleaning a mobile device's charging port?

    Answer: Use a dry, non-conductive tool (toothpick or specialized pick) to gently remove debris without using liquids or metal objects

    Metal tools risk shorting pins, and liquids can cause corrosion; a dry non-conductive pick is the safest method.

  2. A customer's phone shows 'Charging Slowly' when connected to a USB port on a computer. Why?

    Answer: Standard USB-A ports typically deliver only 0.5-0.9W, far less than the 5W or more provided by wall chargers

    Computer USB host ports are low-current by design and are not intended for efficient smartphone charging.

  3. What differentiates a protective case rated for 'military standard' (MIL-STD-810G)?

    Answer: It has been tested to withstand specific conditions including drop, vibration, humidity, and temperature extremes

    MIL-STD-810G certification indicates the case has passed a series of environmental and mechanical stress tests.

  4. What does 'NFC' stand for and what accessory use does it enable?

    Answer: Near Field Communication; enables contactless payments, smart tags, and pairing with NFC accessories

    NFC enables short-range communication for mobile payments, transit passes, and accessory pairing within a few centimeters.

  5. A customer wants to use their phone as a laptop replacement with a keyboard and monitor. Which connection standard enables desktop-class video output from a USB-C port?

    Answer: USB-C with DisplayPort Alternate Mode (DP Alt Mode) or Thunderbolt 3/4

    DisplayPort Alt Mode over USB-C allows full 4K video output to external monitors directly from compatible smartphones.

  6. What is the main risk of using a fast charger rated higher than the device's maximum input rating?

    Answer: The device will only draw its rated maximum; the risk is using low-quality chargers that may not regulate voltage properly

    Properly designed devices negotiate charging speed via the charging protocol, but counterfeit high-watt chargers may bypass safety negotiation.