Mobile Devices

Question 1

Smartwatches and fitness monitors are considered _____ technology.

Answer 1

wearable

Question 2

What is the difference between VR and AR?

Answer 2

Augmented reality tech provides a display that overlays your reality while virtual reality headsets replace what you see entirely.

Question 3

What kind of screen do e-readers use and what are its advantages?

Answer 3

They use a black-and-white electronic ink screen. It performs well in direct light and requires very little power as it only uses energy when the screen changes.

Question 4

What happened that discouraged mobile device companies from using a lot of different proprietary chargers?

Answer 4

The EU standardized mobile device chargers; now they all have to connect via USB.

Question 5

What is the difference between micro-USB and mini-USB connectors?

Answer 5

Micro-USB connectors are smaller than mini-USB connectors. Also, mini-USB connectors are mostly used by older devices.

Question 6

How many pins does a USB-C connector have?

Answer 6

24

Question 7

What type of USB connector has an audio output that allows it to be used with a 3.5mm adapter?

Answer 7

USB-C

Question 8

To what company are lightning cables proprietary?

Answer 8

Apple

Question 9

What are a lightning connector’s advantages?

Answer 9

Higher power and simpler design (can be plugged in either way).

Question 10

What is tethering used for?

Answer 10

Allowing another device to use a mobile device’s data or Internet connection via USB.

Question 11

What does the hotspot feature on a mobile device do?

Answer 11

It turns your mobile device into a wireless access point, allowing other devices to use your mobile device’s data or Internet connection

Question 12

What is NFC?

Answer 12

Near-field communication allows a device to send small amounts of encrypted data over a limited distance.

Question 13

What is Bluetooth?

Answer 13

Bluetooth is a PAN allowing high-speed communication between devices over a limited area

Question 14

Is it possible to control your entertainment center with a mobile device? How?

Answer 14

Yes, many mobile devices have IR (infrared) built-in that would allow for this.

Question 15

What is the difference between a TRS and TRRS 3.5mm connector?

Answer 15

The TRS (tip-ring-sleeve) is used for headsets without a mic while the TRRS (tip-ring-ring-sleeve) is used for headsets with a mic.

Question 16

Not all devices have swappable batteries. What is an alternative for people who want to keep their mobile devices charged on the go without access to an electrical outlet?

Answer 16

Portable external USB batteries can be charged in advance and used to charge other devices.

Question 17

What is the difference between a SD and microSD card?

Answer 17

SD cards are larger and used as expandable memory for older mobile devices, while microSD’s are smaller and used commonly in modern devices.

Question 18

Do all mobile devices have expandable memory?

Answer 18

No, not all Android devices have expandable memory and no iOS devices do.

Question 19

What is used in mobile devices to access a mobile network?

Answer 19

A baseband radio processor

Question 20

How does a baseband radio processor receive updates?

Answer 20

OTA (over the air)

Question 21

What sort of updates are received in real-time that make certain your mobile device is connecting to the right tower?

Answer 21

PRL (preferred roaming list) updates