Accessories and Ports of Mobile Devices

Question 1

You’re the IT manager for a manufacturing company. One of the corporate executives is questioning why you’re buying serial instead of parallel devices. You explain that serial transmits only one bit of information at a time, but it does so very fast compared to parallel. Which of the following will you tell them is not a serial connection?
A. Centronics
B. Thunderbolt
C. Lightning
D. USB-C

Answer 1

A. Centronics

Question 2

What type of connector is used on Android smartphones? (Choose two.)
A. Lightning
B. Thunderbolt
C. USB-C
D. USB Micro-B

Answer 2

C , D; Light and Thunderbolt are proprietary to Apple.

Question 3

You need to work on your laptop while on a 10-hour flight, but your battery won’t last that long. What should you buy to allow you to use the auxiliary power outlets on the flight?
A. AC adapter
B. DC adapter
C. Power inverter
D. Docking station

Answer 3

B. DC adapter;

Question 4

The AC adapter for your laptop is not working properly, and you are searching for a replacement. Which two factors should be most important when selecting a new AC adapter? (Choose two.)
A. Polarity
B. Same wattage as the original
C. Brand of the adapter
D. Size of the adapter

Answer 4

A, B; Polarity and original wattage or more should be considered.

Question 5

How do modern docking stations connect to laptops? (Choose two.)
A. USB 2
B. USB-C
C. Thunderbolt 3 or 4
D. HDMI

Answer 5

B,C

Question 6

What type of device would use a Lightning connector to charge and transfer data?
A. Samsung smartphone
B. Fitbit watch
C. Intel based laptop
D. Apple iPhone

Answer 6

D. Apple iPhone

Question 7

What does the initials NFC denote?

Answer 7

Near-field Communication

Question 8

Which mode of communication does Bluetooth wireless technology use?

Answer 8

radio frequency

Question 9

Which feature turns a user’s iPhone into a wireless access point?

Answer 9

Personal Hotspot

Question 10

Explain, succinctly, near-field communication (NFC).

Answer 10

A low power communication protocol for short ranges between devices.

Question 11

What is a docking staton?

Answer 11

A base station for a laptop that turns it into a desktop system. Instead of plugging multiple devices into a laptop to make it desktop ready, the keyboard, mouse, monitor and printer are permanently plugged into the docking station. In order to switch from portable to desktop use, the laptop snaps into the docking station via USB or a single special-purpose connector. In addition, the docking station may have built-in peripherals such as an optical drive and speakers.

Question 12

What is a port replicator?

Answer 12

A device used to quickly connect multiple peripherals to a laptop via the USB port.

A port replicator provides some or all of the functionality of a docking station, and the two terms are used interchangeably. However, a docking station uses a proprietary connector to the computer, whereas a port replicator generally provides a universal solution for all laptops via USB.