Sim-Ex™ Practice Exams for A+ Core 1: Practice Questions

Mobile Devices

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Q4. A user is requesting a cable to charge and transfer data for an Apple mobile device. Which of the following connection types would satisfy the user's requirements?

A. MicroUSB


C. MiniUSB

D. Lightning

Correct Answer: D


Lightning: The Lightning connector is proprietary to Apple, and is solely used on Apple devices, such as iPhones and iPads. It is able to output a larger amount of power than traditional chargers for faster charging, and it does not have to be turned a specific way to connect it to the charge port on your phone. The following are some of the advantages of lightning connector 

1. It can supply more power
2. It can be inserted either way
3. It is physically more durable than USB
4. It can detect and adapt to connected devices.

IR: Infrared transmissions use the invisible light spectrum to transmit low power signals to compatible devices. There are many applications that can utilize the technology, most notably remote control signaling for control of home theatre devices, garage door openers and any dedicated device that has an unobstructed line-of-sight between the devices. Some smart phones incorporate this technology to let users control their multi-media components. It is one of the earliest types of optical communication and found in remote controls for televisions, dvd players and most other entertainment devices and uses Line Of Sight communication.

Micro-USB/Mini-USB: The two most common ports foud on mobile devices . USB connectors also come in a mini version and a micro version. The micro vesrion is used on mobile devices, such as mobile phones, GPS units, PDAs and digital cameras and mini is found in

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