1101 1.3 Mobile Device Accessories and Ports

Question 1

What is a USB connection?

Answer 1

Universal Serial Bus (USB) is designed for high-speed communication and is commonly used to connect mobile devices to computers or power sources.

Question 2

What types of USB connections are there?

Answer 2

USB-A, USB-C, microUSB, miniUSB.

Question 3

What is a USB-C connection?

Answer 3

USB-C is a reversible connector used for various signals like display port signals, HDMI video and audio, or Thunderbolt data.

Question 4

What is a Lightning connection?

Answer 4

A proprietary connection from Apple, commonly used on iPhones and iPads, supporting higher power output for faster charging.

Question 5

What is a serial interface in mobile devices?

Answer 5

Older method of communication using DB-9 or DE-9 connectors to transport RS232 signals, mostly replaced by USB in modern devices.

Question 6

What is Near-field Communication (NFC)?

Answer 6

A wireless communication technology that allows the transfer of small amounts of data between devices in close proximity.

Question 7

What is Bluetooth connectivity?

Answer 7

A wireless technology used to exchange data over short distances, commonly used for connecting headsets, speakers, and other peripherals to mobile devices.

Question 8

What is a hotspot?

Answer 8

A feature that allows mobile phones to act as a Wi-Fi access point, sharing their cellular network connection with other devices via Wi-Fi.

Question 9

What are touch pens?

Answer 9

Accessories used to interact with the touchscreen of a device, allowing more precise control than fingers.

Question 10

What is the difference between a capacitive stylus and an active stylus?

Answer 10

Capacitive styluses work with any touchscreen, while active styluses can interact more precisely and are often device-specific.

Question 11

What are headsets used for in mobile devices?

Answer 11

Used for audio communications, they can connect via USB, 3.5mm audio jack, Lightning connector, or Bluetooth.

Question 12

What are the benefits of using external speakers with mobile devices?

Answer 12

External speakers, often battery-powered and Bluetooth-connected, provide better sound quality than the small built-in speakers of mobile devices.

Question 13

What is the purpose of a webcam in mobile devices?

Answer 13

Webcams are used for capturing video and images, and are crucial for video communications.

Question 14

What is a docking station?

Answer 14

A device that allows multiple peripherals to be connected to a laptop at once, facilitating easy connectivity when moving between home and office.

Question 15

What is a port replicator?

Answer 15

Similar to a docking station but usually connects via USB and does not support additional adapter cards; it simplifies connecting and disconnecting peripherals.

Question 16

What is the function of a trackpad?

Answer 16

A trackpad replaces the mouse for navigating and interacting with the computer, offering built-in mouse functionality on laptops.

Question 17

How does a drawing pad enhance a computer setup?

Answer 17

It adds touchscreen capabilities to non-touchscreen computers, allowing precise input with an active stylus.

Question 18

How can external trackpads benefit desktop systems?

Answer 18

They extend the gesture capabilities of laptop trackpads to desktop systems, offering customizable touch controls.

Question 19

How do Bluetooth accessories enhance mobile device functionality?

Answer 19

They allow wireless connection of peripherals like headsets, speakers, and fitness trackers, improving mobility and convenience.

Question 20

What are the advantages of NFC over Bluetooth in mobile devices?

Answer 20

NFC is ideal for quick, small data transfers between devices in close proximity, such as for payments or quick links, whereas Bluetooth is better for continuous data streaming over longer periods.

Question 21

What is the benefit of USB-C over microUSB?

Answer 21

USB-C offers a reversible, universal connection capable of higher power and data transfer rates, and supports a broader range of signals.

Question 22

Why might one use a Lightning connection instead of USB?

Answer 22

Lightning connections offer faster charging and are reversible, making them more user-friendly than older USB types.

Question 23

Describe how a Wi-Fi hotspot works on a mobile phone.

Answer 23

A mobile phone’s hotspot function allows it to share its cellular data connection as a Wi-Fi network that other devices can connect to for internet access.

Question 24

What is the purpose of the DB-9 serial connection in modern computing?

Answer 24

Although largely obsolete for general use, DB-9 serial connections are still used for specialized tasks like configuring switches or routers in an IT environment.

Question 25

How does an active stylus differ from a traditional stylus?

Answer 25

An active stylus can detect pressure sensitivity, offering more precise control and interaction capabilities, often including additional buttons for expanded functionality.

Question 26

What role does Bluetooth play in mobile connectivity?

Answer 26

It facilitates wireless data and audio transmission, connecting devices like smartphones to earbuds, car audio systems, and wearable fitness devices.

Question 27

How are external speakers connected to mobile devices?

Answer 27

Typically via Bluetooth, allowing wireless audio playback that is portable and convenient.

Question 28

What functionalities can a docking station add to a laptop?

Answer 28

It can connect additional peripherals like monitors, keyboards, mice, and even external storage or graphics cards, simplifying cable management.

Question 29

How does a port replicator differ in functionality from a docking station?

Answer 29

A port replicator primarily expands the number of available ports via a single connection, often lacking support for internal upgrades or high-power video output that docking stations might offer.

Question 30

What are the typical uses for a trackpad in a mobile setup?

Answer 30

It is used for cursor navigation, multitouch gestures, and can replace a mouse in compact spaces or when a traditional mouse is impractical.