IT and Technology Wireless & Mobile Technologies

Question 1

Which IEEE 802.11 standard is officially branded as Wi-Fi 6 by the Wi-Fi Alliance?

Accepted Answer

802.11ax

Answer

IEEE 802.11ax was branded Wi-Fi 6 by the Wi-Fi Alliance, introducing OFDMA and improved efficiency over 802.11ac (Wi-Fi 5).

Question 2

What frequency band does Bluetooth Low Energy (BLE) operate on?

Accepted Answer

2.4 GHz

Answer

BLE operates in the 2.4 GHz ISM band using 40 channels of 2 MHz each, sharing the band with classic Bluetooth and Wi-Fi.

Question 3

What does SSID stand for in wireless networking?

Accepted Answer

Service Set Identifier

Answer

SSID (Service Set Identifier) is the human-readable name that identifies a specific wireless network to clients scanning for access points.

Question 4

Which wireless security protocol uses TKIP encryption and was designed as a transitional replacement for WEP?

Accepted Answer

WPA

Answer

WPA (Wi-Fi Protected Access) succeeded WEP using TKIP encryption but has since been superseded by WPA2 and WPA3 due to TKIP vulnerabilities.

Question 5

What does MIMO technology provide in wireless networking?

Accepted Answer

Increased throughput by using multiple antennas simultaneously

Answer

MIMO (Multiple Input Multiple Output) uses multiple antennas to transmit and receive several data streams at once, significantly increasing wireless throughput.

IT and Technology Practice Test

IT and Technology Practice Test

IT and Technology Wireless & Mobile Technologies