Front
What is the primary difference between OLED and LCD displays on mobile devices?
Back
OLED does not require a backlight
Each pixel provides its own light, allowing for thinner screens and true blacks.
Public Deck
CompTIA A+ Core 1 - 60 Essential Topics
Prepare for CompTIA A+ Core 1 certification with 60 flashcards covering mobile, networking, hardware, and troubleshooting.
AnyFlashcards60 cards
Preview
Front
What component converts physical touch into digital signals on a smartphone?
Back
Digitizer
A thin layer of glass or plastic integrated into the display assembly.
Front
What is the purpose of an inverter in older laptop screens?
Back
Converts DC power to AC for CCFL backlights
Modern LED-backlit screens do not require an inverter.
Front
Which mobile connection type is proprietary to Apple devices?
Back
Lightning
An 8-pin reversible connector used for charging and data transfer.
Front
What technology allows two devices to communicate within 4cm of each other for payments?
Back
NFC (Near Field Communication)
Used for contactless payment systems like Apple Pay or Google Pay.
Front
What is the difference between a Hotspot and Tethering?
Back
Hotspot uses Wi-Fi; Tethering uses a physical cable (USB)
Both share a mobile device's cellular data connection with other devices.
Front
What does MDM stand for in a corporate mobile environment?
Back
Mobile Device Management
Centralized software used to deploy, secure, and monitor mobile devices.
Front
What is a PRL (Preferred Roaming List) update?
Back
A database telling the phone which radio towers to use
Ensures the device connects to the correct cellular provider while roaming.
Front
What is the 'Baseband' update on a mobile device?
Back
Firmware for the cellular radio processor
Manages all radio communications (Wi-Fi, Bluetooth, Cellular).
Front
What is Geofencing?
Back
A virtual perimeter based on GPS coordinates
Triggers actions when a device enters or leaves a specific area.
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