WIFI

In what year was the IEEE 802.11 standard introduced?

• 1997
• 1999
• 2000
• 1995

What was the first Wi-Fi standard to offer speeds up to 11 Mbps?

• IEEE 802.11n
• IEEE 802.11g
• IEEE 802.11a
• IEEE 802.11b

What major organization was formed in 1999 to promote and certify Wi-Fi technology?

• Wi-Fi Alliance
• Global Wi-Fi Council
• Wireless Technology Association
• Wi-Fi Federation

Which Wi-Fi standard introduced MIMO (Multiple Input Multiple Output) technology?

• IEEE 802.11g
• IEEE 802.11a
• IEEE 802.11ac
• IEEE 802.11n

What does Wi-Fi primarily use to transmit data wirelessly?

• Radio waves
• Infrared signals
• Microwaves
• Ultrasound waves

Which frequency bands are commonly used in Wi-Fi networks?

• 1.2 GHz and 3.5 GHz

• 2.0 GHz and 4.0 GHz

• 2.4 MHz and 5.8 GHz

• 2.4 GHz and 5 GHz

Who is known as the "Father of Wi-Fi" for his role in developing the IEEE 802.11 standard?

• Tim Berners-Lee
• Vic Hayes
• Vint Cerf
• Robert Kahn

What technology introduced in IEEE 802.11n allows multiple antennas to transmit and receive data simultaneously?

• SISO
• OFDM
• CSMA/CA
• MIMO

What is one of the primary security risks of using public Wi-Fi networks?

• Data interception by attackers.
• Enhanced privacy settings.
• Faster internet speeds.
• Increased battery life of devices.

Which of the following is NOT a common application of Wi-Fi in industrial settings?

• Smart grids in energy management

• Automated guided vehicles (AGVs) in warehouses

• Real-time medical diagnostics

• Underground mining operations without radio signal access