Securing Wireless Networks

Question 1

Name two directional antenna types

Answer 1

Yagi and Parabolic

Question 2

Which 2.4Ghz wireless standard is the only one to use 22Mhz and not 20Mhz?

Answer 2

802. 11b

* A and G only use 20Mhz

Question 3

Which wireless standards supports both 20Mhz and 40Mhz channel bandwidth?

Answer 3

802.11n

Question 4

Which wireless standard uses channel widths of 20-40-80-160Mhz promises theoretical speeds of 1Gbps?

Answer 4

802.11ac

Question 5

distance increases/decreases as you increase channel width?

What other issue can you get with larger widths?

Answer 5

distance decreases when increasing the size of the channel width
you also increase the risk of interference as there are less channels used

Question 6

What are the 3 wireless architecture ‘zones’ called?

What’s the general purpose of them?

Answer 6

Wireless - for employees and guests
Guest - guests only, basic access only
Ad hoc - machine to machine

They provide separation based on usage

Question 7

What’s the difference between WPA and WPA2?

Answer 7

WPA2 uses the stronger AES-CCMP encryption where as WPA uses TKIP