📱 CompTIA A+ CORE 1 | SERIES 220-1201: Mobile Devices

Welcome to the focused study track for Mobile Devices! In this pack, you will master the essential skills for this A+ domain. You will learn how to monitor mobile device hardware and use appropriate replacement techniques, compare and contrast accessories and connectivity options for mobile devices, and configure basic mobile device network connectivity and provide application support. These flashcards cut straight to the core learning objectives, preparing you for the questions on mobile maintenance, connections, and support.

Which precaution is most effective for reducing the risk of electrical failures in electronic devices?

Using surge protectors: Prevents damage from voltage spikes and electrical surges, reducing risk of electrical failures.

What attributes distinguish capacitive from resistive touchscreens?

Capacitive: More sensitive and responsive; supports multi-touch gestures; common in modern smartphones and tablets.Resistive: Less sensitive; generally only single-touch; often cheaper.

What is the typical maximum transmission range supported by Bluetooth 5.3?

60 meters

What data transfer speed is supported by RS-422 serial communications?

10 Mbps

Which mobile accessories are categorized as connectivity accessories?

Port replicators, Data transfer cables

Most modern lithium-ion mobile device batteries will support approximately how many charge cycles?

Between 300 and 500

What are the most common causes of mobile application connectivity issues?

Device-specific issues, App-specific issues, Internet connectivity problems

Which statements about wired vs wireless mobile device charging are correct?

Wired charging is more efficient in terms of energy use. Wireless charging can reduce battery lifespan. Fast wired charging can reduce battery lifespan

Which activities are required after performing a factory reset on a mobile device?

• Restore personal data and settings

• Update the operating system

• Reconfigure security settings

Which type of synchronization is shown by syncing only your photos to Google Photos?

App-specific synchronization

Which operations or configurations help optimize memory usage on a mobile device?

Use lite versions of apps, Regular reboots

Which mobile device security measure treats all access attempts as untrusted?

Zero-trust security

Note: "Never trust, always verify"—requires verification for every access attempt, every time.