1.3 - Mobile Devices

Question 1

What is a strong advantage of the USB-C plug? (1.3)

Answer 1

It can transmit different signals such as DisplayPort, HDMI, Thunderbolt, etc.

Question 2

How many pins does the USB-C plug have? (1.3)

Answer 2

24

Question 3

How many pins does the Lightning plug have? (1.3)

Answer 3

8

Question 4

Which serial interface connector is commonly used for RS-232 signals? (1.3)

Answer 4

DB-9 (Sometimes called DE-9)

Question 5

Which serial interface connector was traditionally used for modem connections? (1.3)

Answer 5

DB-9

Question 6

What are DB-9 connectors commonly used for nowadays? (1.3)

Answer 6

Used as a configuration port for things such as switches, routers, firewalls, etc.

Question 7

What is used to send small amounts of data wireless over a limited area? (1.3)

Answer 7

Near Field Communication (NFC)

Question 8

What technology is high speed communication over short distances? (1.3)

Answer 8

Bluetooth

Question 9

What technology acts as your own personal wireless router? (1.3)

Answer 9

Hotspot

Question 10

What tool is commonly used to navigate touch screens? (1.3)

Answer 10

Touch pens

Question 11

Touch pens

Answer 11

An active stylus is a more advanced writing tool that communicates to the device through pressure sensitivity and programmable buttons.

Question 12

For wired headsets, what is the most common connector size? (1.3)

Answer 12

3.5mm TRRS (Tip-Ring-Ring-Sleeve)

Question 13

What does the TRRS on a 3.5mm connector do? (1.3)

Answer 13

Separates all of the signals that are involved in listening to audio and outputting (speaking).

Question 14

What is a port replicator? (1.3)

Answer 14

Similar to a docking station, but it does not commonly have an expansion card option. It connects to a laptop via. USB.