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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 wireless LAN design ensures that a mobile wireless client will not lose connectivity when moving from one access point to another?
SSID
Overlapping the wireless cell coverage by at least 10%
PEAP - EAP-FAST - Local-EAP
54 Mbps

2. Which feature of 802.11n provides MAC efficiency?
AES-CCMP
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.
RADIUS Server
Block Acknowledgments

3. 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.
RC4 algorithm
IEEE 802.11i
The three basic parameters to configure when setting up an access point are the SSID - the RF channel - and the authentication method.

4. What are three basic parameters to configure on a wireless access point?
The three basic parameters to configure when setting up an access point are the SSID - the RF channel - and the authentication method.
Three
Overlapping the wireless cell coverage by at least 10%
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.

5. Name three EAP types that allow us to use wireless LANs in enterprise networks?
RADIUS Server
SSID
PEAP - EAP-FAST - Local-EAP
Independent Basic Service Set (IBSS) is ad-hoc wireless

6. What is the frequency range of IEEE 802.11g?
2.4 GHz
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.
Independent Basic Service Set (IBSS) is ad-hoc wireless
Three

7. WPA2 uses which encryption method?
SSID
RC4 algorithm
Three
AES-CCMP

8. Which IEEE committee has been sanctioned by WPA and is called WPA2?
IEEE 802.11i
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
2.4 GHz

9. What is the maximum data rate for the 802.11a standard?
11Mbps
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
54 Mbps

10. 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
IEEE 802.11i
RADIUS Server
Cordless phone interference - antenna type or orientation - and metal filing cabinet reflection of the RF signal can all give rise to connectivity issues.

11. The TKIP encryption is based on the...
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.
Block Acknowledgments
RC4 algorithm
5 GHz

12. Which two wireless encryption methods are based on the RC4 encryption algorithm?
PEAP - EAP-FAST - Local-EAP
WEP & TKIP (WPA) use RC4 WPA2 uses AES
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.
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.

13. Two workers have established wireless communication directly between their wireless laptops. What type of wireless topology has been created by these employees?
IEEE 802.11i
Independent Basic Service Set (IBSS) is ad-hoc wireless
11Mbps
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.

14. What is the maximum data rate of IEEE 802.11g?
54Mpbs
PEAP - EAP-FAST - Local-EAP
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.

15. What is the frequency range of IEEE 802.11b?
2.4 GHz
SSID
Cordless phone interference - antenna type or orientation - and metal filing cabinet reflection of the RF signal can all give rise to connectivity issues.
IEEE 802.11i

16. Which two features did WPA add to address the inherent weaknesses found in WEP?
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.
11Mbps

17. What device must be on your wired network when running an enterprise EAP solution?
RADIUS Server
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.
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.

18. Which two practices help secure the configuration utilities on wireless access points from unauthorized access?
Changing the default SSID value and administrator password
54Mpbs
AES-CCMP
The three basic parameters to configure when setting up an access point are the SSID - the RF channel - and the authentication method.

19. What is the maximum data rate of IEE 902.11b?
Overlapping the wireless cell coverage by at least 10%
11Mbps
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.

20. You are connecting your access point and it is set to root. What does extended service set ID mean?
5 GHz
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.
11Mbps
Three

21. How many non-overlapping channels are available with 802.11b?
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.
Three
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.

22. Describes the wireless security standard that WPA defines?
Changing the default SSID value and administrator password
The three basic parameters to configure when setting up an access point are the SSID - the RF channel - and the authentication method.
WEP & TKIP (WPA) use RC4 WPA2 uses AES
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.

23. 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?
5 GHz
Cordless phone interference - antenna type or orientation - and metal filing cabinet reflection of the RF signal can all give rise to connectivity issues.
SSID
AES-CCMP

24. Which encryption type does WPA2 use? WPA?
The three basic parameters to configure when setting up an access point are the SSID - the RF channel - and the authentication method.
Changing the default SSID value and administrator password
Three
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.

25. What is the frequency range of IEEE 802.11a?
Changing the default SSID value and administrator password
5 GHz
The three basic parameters to configure when setting up an access point are the SSID - the RF channel - and the authentication method.
RADIUS Server