CMT Study Guide 2026
Everything you need to pass the CMT exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 CMT Exam Format at a Glance
📚 CMT Topics to Study (38)
✍️ Sample CMT Questions & Answers
1. Which component in a mobile device is responsible for wireless communication?
The wireless communication module is the dedicated component within a mobile device responsible for enabling various forms of wireless connectivity. This module integrates technologies such as Wi-Fi, Bluetooth, and cellular (2G/3G/4G/5G) radios, allowing the device to connect to networks, access the internet, and communicate with other devices without physical cables. It is essential for all modern mobile connectivity features.
2. Which wireless standard allows a mobile device to make contactless payments at a point-of-sale terminal?
NFC operates at 13.56 MHz over distances under 4 cm and is the standard used by Apple Pay, Google Pay, and other mobile payment systems.
3. A smartphone powers on but the touchscreen is completely unresponsive after a drop. The display shows the home screen correctly. What is the most likely cause?
A drop can crack or disconnect the digitizer (touch sensor layer) while leaving the display itself functional.
4. What is the primary purpose of maintaining detailed repair logs for each device serviced?
Comprehensive repair logs are essential for resolving disputes, supporting warranties, and demonstrating professional due diligence.
5. A customer's Android device is showing signs of a rogue profile installed via a phishing link. What is the FIRST step a technician should take?
Rogue device admin profiles must first be deactivated in settings before they can be removed, as active admin profiles block their own deletion.
6. What does 'Pass-Through Charging' mean in the context of power banks and mobile devices?
Pass-through charging allows a power bank to receive charge from an input source while simultaneously outputting power to charge a connected device.