Wireless Communication Standards and Technologies

This video tutorial explores the various standards used in wireless networks, focusing on the 802.11 family developed by IEEE. It explains the significance of frequency bands, particularly 2.4GHz and 5GHz, and how they affect data transmission and interference. The video also covers channel allocation, highlighting the importance of non-overlapping channels for optimal performance. MIMO technology is introduced as a means to enhance bandwidth and reduce latency. Finally, the evolution of 802.11 standards is reviewed, detailing their speed, frequency, and compatibility improvements over time.

What organization developed the 802.11 family of standards?

• IEEE

• ISO

• FCC

• ITU

Which frequency band is known for having a better signal range?

• 6.0 GHz

• 1.2 GHz

• 2.4 GHz

• 5.0 GHz

What is a common cause of interference in the 2.4 GHz band?

• Televisions

• Cell phones

• Microwaves

• Bluetooth devices

How many channels are available in the 2.4 GHz band in the US?

• 12

• 11

• 13

• 14

Which channels are preferred to avoid overlap in the 2.4 GHz band?

• 3, 7, 11

• 2, 6, 10

• 1, 5, 9

• 1, 6, 11

What does MIMO stand for?

• Multiple Input Multiple Output

• Multiple Internet Multiple Output

• Multiple Input Multiple Operations

• Multiple Internet Multiple Operations

What is the benefit of using MIMO technology?

• Improved security

• Reduced power consumption

• Increased signal range

• Increased bandwidth and reduced latency

Which 802.11 standard was the first to use the 5 GHz band?

• 802.11n

• 802.11g

• 802.11b

• 802.11a

Which 802.11 standard introduced MIMO technology?

• 802.11g

• 802.11a

• 802.11n

• 802.11b

Which 802.11 standard is known for being fully backwards compatible?

• 802.11ac

• 802.11g

• 802.11b

• 802.11a