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CCNA Wireless Questions

Instructions:

Answer 25 questions in 15 minutes.
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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 practices help secure the configuration utilities on wireless access points from unauthorized access?
2.4 GHz
Changing the default SSID value and administrator password
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.
RADIUS Server

2. How many non-overlapping channels are available with 802.11b?
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.
The three basic parameters to configure when setting up an access point are the SSID - the RF channel - and the authentication method.
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.

3. Name three EAP types that allow us to use wireless LANs in enterprise networks?
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.
Three
PEAP - EAP-FAST - Local-EAP
5 GHz

4. What is the maximum data rate for the 802.11a standard?
The SSID is configured incorrectly on the client.
54 Mbps
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.
Changing the default SSID value and administrator password

5. Which two wireless encryption methods are based on the RC4 encryption algorithm?
WEP & TKIP (WPA) use RC4 WPA2 uses AES
The three basic parameters to configure when setting up an access point are the SSID - the RF channel - and the authentication method.
Three
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.

6. Describes the wireless security standard that WPA defines?
11Mbps
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.
2.4 GHz
Block Acknowledgments

7. Which feature of 802.11n provides MAC efficiency?
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.
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.
Changing the default SSID value and administrator password
Block Acknowledgments

8. 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
PEAP - EAP-FAST - Local-EAP
11Mbps
Cordless phone interference - antenna type or orientation - and metal filing cabinet reflection of the RF signal can all give rise to connectivity issues.
2.4 GHz

9. Which encryption type does WPA2 use? WPA?
AES-CCMP
2.4 GHz
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.
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.

10. You are connecting your access point and it is set to root. What does extended service set ID mean?
Cordless phone interference - antenna type or orientation - and metal filing cabinet reflection of the RF signal can all give rise to connectivity issues.
Changing the default SSID value and administrator password
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.
54 Mbps

11. What are three basic parameters to configure on a wireless access point?
Overlapping the wireless cell coverage by at least 10%
Independent Basic Service Set (IBSS) is ad-hoc wireless
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

12. Which wireless LAN design ensures that a mobile wireless client will not lose connectivity when moving from one access point to another?
2.4 GHz
11Mbps
Overlapping the wireless cell coverage by at least 10%
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.

13. What is the maximum data rate of IEEE 802.11g?
54Mpbs
Overlapping the wireless cell coverage by at least 10%
11Mbps
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.

14. The TKIP encryption is based on the...
RC4 algorithm
PEAP - EAP-FAST - Local-EAP
5 GHz
The three basic parameters to configure when setting up an access point are the SSID - the RF channel - and the authentication method.

15. 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?
The three basic parameters to configure when setting up an access point are the SSID - the RF channel - and the authentication method.
RADIUS Server
Overlapping the wireless cell coverage by at least 10%
SSID

16. What is the maximum data rate of IEE 902.11b?
PEAP - EAP-FAST - Local-EAP
11Mbps
The SSID is configured incorrectly on the client.
54Mpbs

17. What is the frequency range of IEEE 802.11g?
2.4 GHz
54Mpbs
SSID
The three basic parameters to configure when setting up an access point are the SSID - the RF channel - and the authentication method.

18. Two workers have established wireless communication directly between their wireless laptops. What type of wireless topology has been created by these employees?
54Mpbs
Independent Basic Service Set (IBSS) is ad-hoc wireless
PEAP - EAP-FAST - Local-EAP
Overlapping the wireless cell coverage by at least 10%

19. 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?
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.
Three
The SSID is configured incorrectly on the client.
Block Acknowledgments

20. What device must be on your wired network when running an enterprise EAP solution?
Cordless phone interference - antenna type or orientation - and metal filing cabinet reflection of the RF signal can all give rise to connectivity issues.
54 Mbps
RADIUS Server
Independent Basic Service Set (IBSS) is ad-hoc wireless

21. Which IEEE committee has been sanctioned by WPA and is called WPA2?
The SSID is configured incorrectly on the client.
RADIUS Server
Three
IEEE 802.11i

22. Which two features did WPA add to address the inherent weaknesses found in WEP?
IEEE 802.11i
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.
Cordless phone interference - antenna type or orientation - and metal filing cabinet reflection of the RF signal can all give rise to connectivity issues.
54 Mbps

23. What is the frequency range of IEEE 802.11a?
5 GHz
PEAP - EAP-FAST - Local-EAP
11Mbps
2.4 GHz

24. WPA2 uses which encryption method?
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.
2.4 GHz
RADIUS Server
AES-CCMP

25. What is the frequency range of IEEE 802.11b?
Overlapping the wireless cell coverage by at least 10%
SSID
2.4 GHz
IEEE 802.11i