Telecommunications Wireless Communications

Question 1

Which Wi-Fi standard introduced the 5 GHz band?

Accepted Answer

802.11a

Answer

IEEE 802.11a was the first standard to use the 5 GHz frequency band, operating at speeds up to 54 Mbps.

Question 2

What does SSID stand for in wireless networking?

Accepted Answer

Service Set Identifier

Answer

SSID (Service Set Identifier) is the name that identifies a specific wireless network.

Question 3

What wireless security protocol replaced WEP due to its vulnerabilities?

Accepted Answer

WPA

Answer

WPA (Wi-Fi Protected Access) was introduced to address WEP's significant security weaknesses.

Question 4

Which Wi-Fi standard is also known as Wi-Fi 6?

Accepted Answer

802.11ax

Answer

IEEE 802.11ax is branded as Wi-Fi 6 and offers improved performance in dense environments with speeds up to 9.6 Gbps.

Question 5

What is the primary advantage of 5 GHz over 2.4 GHz Wi-Fi?

Accepted Answer

More channels and less interference

Answer

The 5 GHz band offers more non-overlapping channels and less interference from devices like microwaves and cordless phones.

Telecommunications Practice Test