Wireless Communications Flashcards
6 cards from real Telecommunications practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Wireless Communications flashcards as text
Which Wi-Fi standard introduced the 5 GHz band?
Answer: 802.11a
IEEE 802.11a was the first standard to use the 5 GHz frequency band, operating at speeds up to 54 Mbps.
What does SSID stand for in wireless networking?
Answer: Service Set Identifier
SSID (Service Set Identifier) is the name that identifies a specific wireless network.
What wireless security protocol replaced WEP due to its vulnerabilities?
Answer: WPA
WPA (Wi-Fi Protected Access) was introduced to address WEP's significant security weaknesses.
Which Wi-Fi standard is also known as Wi-Fi 6?
Answer: 802.11ax
IEEE 802.11ax is branded as Wi-Fi 6 and offers improved performance in dense environments with speeds up to 9.6 Gbps.
What is the primary advantage of 5 GHz over 2.4 GHz Wi-Fi?
Answer: More channels and less interference
The 5 GHz band offers more non-overlapping channels and less interference from devices like microwaves and cordless phones.
What does MIMO stand for in wireless communications?
Answer: Multiple Input Multiple Output
MIMO (Multiple Input Multiple Output) uses multiple antennas to transmit and receive data simultaneously, increasing throughput.