Wireless Networking Basics

Test your skills on Wireless Networking Basics

1. Which of the following statements are false.

a. 802.11b devices are inter operable with 802.11g
b. 802.11 g devices are inter operable with 802.11 b
c. 802.11 b devices are inter operable with 802.11 a
d. None of the above

2. Which of the following protocols is not a part of wireless communication

a. WEP
b. WPA
C. Radius
d. SSL

3. What is the type of communication between a wireless client and access point

a. Full duplex
b. Half duplex
c. Simplex
d. Full duplex 100 mpbs

4. Can an access point configured with an IP address

a. Yes
b. No
c. Only if it bipolar
d. None of the above

5. What are the sequence of steps which happen in a communication between client and access point

a. authentication followed by association
b. association followed by authentication
c. Only authentication
d. Only association

6. How many 802.11b access points can be setup in a 100 sqft room without any interference.

a. 1
b. 2
c. 3
d. 4

7. What is the password used for configuring an access point using a web interface

a. password
b. same as the username
c. based on the vendor
d. serial number of the access point.

Answers

1. c
2. d
3. b
4. a
5. a
6. 3
7. c

1. 802.11 b and g works on the 2.4 Ghz range. 802.11 a works on 5 Ghz range. Only 802.11 b and g are inter operable.

2. SSL which stands for secure socket layer is not a part of the wireless protocol suite

3. Wireless clients and access points communicate using half duplex.

4. An access point can be configured with an IP address using a console cable or the web interface.

5. The wireless client initially authenticates with the access point, followed by association. For this , it uses appropriate 802.11 frames.

6. 802.11b access points work on 2.4 ghz range, which has 11 channels. Access points can be kept in 1,6,11 channels to avoid interference. As it is a small room, 3 access points can be setup using the appropriate channels.

7. Every vendor has a unique password for it’s access point. So the password is based on the vendor.