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CCNA Wireless Questions

Instructions:

Answer 25 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. Which two wireless encryption methods are based on the RC4 encryption algorithm?
WEP & TKIP (WPA) use RC4 WPA2 uses AES
RADIUS Server
54Mpbs
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.

2. A single 802.11g access point has been configured and installed in the center of a square-shaped office. A few wireless users are experiencing slow performance and drops while most users are operating at peak efficiency. What could likely be the caus
2.4 GHz
Overlapping the wireless cell coverage by at least 10%
Extended service set ID means that you have more than one access point and they all are set to the same SSID and all are connected together in the same VLAN or distribution system so users can roam.
Cordless phone interference - antenna type or orientation - and metal filing cabinet reflection of the RF signal can all give rise to connectivity issues.

3. Which feature of 802.11n provides MAC efficiency?
Block Acknowledgments
11Mbps
Overlapping the wireless cell coverage by at least 10%
SSID

4. Two workers have established wireless communication directly between their wireless laptops. What type of wireless topology has been created by these employees?
Independent Basic Service Set (IBSS) is ad-hoc wireless
2.4 GHz
54 Mbps
5 GHz

5. What is the maximum data rate of IEEE 802.11g?
AES-CCMP
SSID
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.
54Mpbs

6. What device must be on your wired network when running an enterprise EAP solution?
RADIUS Server
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.
IEEE 802.11i
WEP & TKIP (WPA) use RC4 WPA2 uses AES

7. You have finished physically installing an access point on the ceiling of your office. At a minimum - which parameter must be configured on the access point in order to allow a wireless client to operate on it?
Cordless phone interference - antenna type or orientation - and metal filing cabinet reflection of the RF signal can all give rise to connectivity issues.
PEAP - EAP-FAST - Local-EAP
SSID
2.4 GHz

8. Which wireless LAN design ensures that a mobile wireless client will not lose connectivity when moving from one access point to another?
Overlapping the wireless cell coverage by at least 10%
PEAP - EAP-FAST - Local-EAP
5 GHz
2.4 GHz

9. What is the maximum data rate of IEE 902.11b?
11Mbps
2.4 GHz
54 Mbps
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.

10. Which two features did WPA add to address the inherent weaknesses found in WEP?
PEAP - EAP-FAST - Local-EAP
1. Key mixing using temporal keys. 2. Per frame sequence counter. WPA uses Temporal Key Integrity Protocol (TKIP) - which includes both broadcast key rotation (dynamic keys that change) and sequencing of frames.
WPA - although using the same RC4 encryption that WEP uses - provides enhancements to the WEP protocol by using dynamic keys that change constantly - as well as providing a Pre-Shared Key method of authentication.
5 GHz

11. What is the frequency range of IEEE 802.11a?
PEAP - EAP-FAST - Local-EAP
RC4 algorithm
Independent Basic Service Set (IBSS) is ad-hoc wireless
5 GHz

12. WPA2 uses which encryption method?
Independent Basic Service Set (IBSS) is ad-hoc wireless
AES-CCMP
Overlapping the wireless cell coverage by at least 10%
WEP & TKIP (WPA) use RC4 WPA2 uses AES

13. Which two practices help secure the configuration utilities on wireless access points from unauthorized access?
IEEE 802.11i
Changing the default SSID value and administrator password
Independent Basic Service Set (IBSS) is ad-hoc wireless
AES-CCMP

14. You are connecting your access point and it is set to root. What does extended service set ID mean?
54 Mbps
Extended service set ID means that you have more than one access point and they all are set to the same SSID and all are connected together in the same VLAN or distribution system so users can roam.
RADIUS Server
2.4 GHz

15. Describes the wireless security standard that WPA defines?
WPA - although using the same RC4 encryption that WEP uses - provides enhancements to the WEP protocol by using dynamic keys that change constantly - as well as providing a Pre-Shared Key method of authentication.
The SSID is configured incorrectly on the client.
IEEE 802.11i
54Mpbs

16. What is the frequency range of IEEE 802.11b?
WEP & TKIP (WPA) use RC4 WPA2 uses AES
PEAP - EAP-FAST - Local-EAP
2.4 GHz
5 GHz

17. A wireless client cannot connect to an 802.11b/g BSS with a b/g wireless card. The client section of the access point does not list any active WLAN clients. What is a possible reason for this?
The SSID is configured incorrectly on the client.
AES-CCMP
The three basic parameters to configure when setting up an access point are the SSID - the RF channel - and the authentication method.
RADIUS Server

18. What is the maximum data rate for the 802.11a standard?
54 Mbps
54Mpbs
The three basic parameters to configure when setting up an access point are the SSID - the RF channel - and the authentication method.
The SSID is configured incorrectly on the client.

19. What are three basic parameters to configure on a wireless access point?
Block Acknowledgments
The three basic parameters to configure when setting up an access point are the SSID - the RF channel - and the authentication method.
2.4 GHz
11Mbps

20. How many non-overlapping channels are available with 802.11b?
Three
2.4 GHz
54 Mbps
SSID

21. What is the frequency range of IEEE 802.11g?
Overlapping the wireless cell coverage by at least 10%
The SSID is configured incorrectly on the client.
2.4 GHz
IEEE 802.11i

22. Which encryption type does WPA2 use? WPA?
Changing the default SSID value and administrator password
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.
Independent Basic Service Set (IBSS) is ad-hoc wireless
Extended service set ID means that you have more than one access point and they all are set to the same SSID and all are connected together in the same VLAN or distribution system so users can roam.

23. Which IEEE committee has been sanctioned by WPA and is called WPA2?
54Mpbs
IEEE 802.11i
Three
1. Key mixing using temporal keys. 2. Per frame sequence counter. WPA uses Temporal Key Integrity Protocol (TKIP) - which includes both broadcast key rotation (dynamic keys that change) and sequencing of frames.

24. Name three EAP types that allow us to use wireless LANs in enterprise networks?
RADIUS Server
PEAP - EAP-FAST - Local-EAP
2.4 GHz
RC4 algorithm

25. The TKIP encryption is based on the...
RC4 algorithm
RADIUS Server
AES-CCMP
11Mbps