A+ Mobile Device Connectivity and Pairing Methods

1. Which of the following is a characteristic of 802.11ax (Wi-Fi 6)?

Operates only on 2.4 GHz band

Supports OFDMA for improved efficiency

Maximum theoretical speed of 54 Mbps

Requires WEP encryption

2. Which mobile device connectivity standard is primarily designed for Internet of Things (IoT) devices due to its low power consumption?

5G

Wi-Fi 6

Bluetooth Low Energy

LTE-Advanced

3. When a mobile device enters pairing mode, it becomes ____.

Invisible

Discoverable

Encrypted

Dormant

4. Mobile device location services typically use which of the following for positioning?

Bluetooth signals only

GPS, cellular triangulation, and Wi-Fi positioning

NFC tags exclusively

USB connection data

5. What does MIMO stand for in the context of modern Wi-Fi standards?

Multiple Input Multiple Output

Mobile Input Mobile Output

Modulated Input Modulated Output

Managed Interface Mobile Optimization

6. Which mobile device connectivity method is best suited for contactless payment transactions?

Bluetooth

Wi-Fi Direct

NFC

Cellular data

7. The Bluetooth pairing process between two devices is sometimes called ____.

Bonding

Syncing

Linking

Binding

8. Which Bluetooth profile is used for wireless audio streaming from a mobile device to headphones?

HID profile

A2DP profile

SPP profile

HFP profile

9. What is the primary advantage of dual-band Wi-Fi (2.4 GHz and 5 GHz) on mobile devices?

Increased security

Flexibility in band selection based on distance and interference

Doubled data transfer speed

Reduced power consumption

10. Mobile hotspot tethering allows a mobile device to share its cellular connection. Which connection method typically provides the best security for tethering?

Open Wi-Fi network

WPA2-encrypted Wi-Fi

Bluetooth pairing

USB connection

11. Which Bluetooth version introduced Bluetooth Low Energy (BLE) technology?

Bluetooth 3.0

Bluetooth 4.0

Bluetooth 5.0

Bluetooth 2.1

12. What is the primary purpose of the Bluetooth PIN code during initial pairing?

To encrypt all future communications

To authenticate devices and prevent unauthorized pairing

To establish the Bluetooth frequency hopping sequence

To increase the transmission power level

13. Which mobile connectivity standard provides the lowest latency for time-sensitive applications?

4G LTE

5G

3G

2G GSM

14. USB Type-C supports which of the following power delivery levels?

Maximum 15W

Maximum 60W

Maximum 100W

Maximum 240W

15. What does WPA2 stand for in mobile device Wi-Fi security?

Wireless Protocol Authentication 2

Wi-Fi Protected Access 2

Wireless Public Access 2

Wi-Fi Protection Authority 2

16. Which Wi-Fi standard operates exclusively on the 5 GHz frequency band?

802.11a

802.11b

802.11g

802.11n

17. What is the maximum effective range for NFC communication?

1 centimeter

4 centimeters

10 centimeters

1 meter

18. NFC (Near Field Communication) typically operates at what frequency?

2.4 GHz

5 GHz

13.56 MHz

900 MHz

19. Which pairing mode allows a Bluetooth device to accept connections without user interaction after initial pairing?

Discoverable mode

Connectable mode

Pairing mode

Host mode

20. What is the maximum range of standard Bluetooth 5.0 in open space?

50 meters

100 meters

240 meters

500 meters

A+ Mobile Device Connectivity and Pairing Methods Quiz