wireless networking TECH

Question 1

hat are the main wireless frequencies?

Answer 1

2.4GHz (long range, slower), 5GHz (shorter range, faster), 6GHz (new, faster, cleaner).
📡
Why it matters: Choosing the right frequency boosts speed & avoids interference.

Question 2

Why are wireless channels important?

Answer 2

They reduce interference. Channel selection depends on width, bands, and location rules.

📻 Why it matters: Better channel = better Wi-Fi performance.

Question 3

What is Bluetooth used for?

Answer 3

Short-range wireless communication between devices.

🎧 Why it matters: Used in everyday tech like headphones, mice, smartwatches.

Question 4

What is NFC (Near Field Communication)?

Answer 4

Tap-to-connect tech used in mobile payments.

💳 Why it matters: Secure, quick device communication (e.g. Apple Pay).

Question 5

What is RFID?

Answer 5

Uses radio waves to identify and track tags.

📦 Why it matters: Used in inventory systems and ID badges.

Question 6

: What are 802.11 standards?

Answer 6

Wi-Fi standards like 802.11n, ac, ax – they define speed, range, and frequency.

🌐 Why it matters: You’ll match the right standard to the environment.