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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. What is the frequency range of IEEE 802.11g?
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.
RC4 algorithm
2.4 GHz

2. 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%
5 GHz
54 Mbps

3. The TKIP encryption is based on the...
RC4 algorithm
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.
2.4 GHz
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.

4. 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.
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.
2.4 GHz
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.

5. Which two features did WPA add to address the inherent weaknesses found in WEP?
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.
PEAP - EAP-FAST - Local-EAP
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.

6. Which two practices help secure the configuration utilities on wireless access points from unauthorized access?
RADIUS Server
Changing the default SSID value and administrator password
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

7. Two workers have established wireless communication directly between their wireless laptops. What type of wireless topology has been created by these employees?
SSID
2.4 GHz
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.
Independent Basic Service Set (IBSS) is ad-hoc wireless

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.
Changing the default SSID value and administrator password
Independent Basic Service Set (IBSS) is ad-hoc wireless

9. What are three basic parameters to configure on a wireless access point?
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.
2.4 GHz
The three basic parameters to configure when setting up an access point are the SSID - the RF channel - and the authentication method.
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. What is the maximum data rate for the 802.11a standard?
5 GHz
54 Mbps
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.
The SSID is configured incorrectly on the client.

11. 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?
2.4 GHz
Block Acknowledgments
SSID
Independent Basic Service Set (IBSS) is ad-hoc wireless

12. What is the frequency range of IEEE 802.11b?
2.4 GHz
RADIUS Server
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.
PEAP - EAP-FAST - Local-EAP

13. How many non-overlapping channels are available with 802.11b?
Three
IEEE 802.11i
Overlapping the wireless cell coverage by at least 10%
11Mbps

14. Which feature of 802.11n provides MAC efficiency?
PEAP - EAP-FAST - Local-EAP
Changing the default SSID value and administrator password
2.4 GHz
Block Acknowledgments

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

16. What is the frequency range of IEEE 802.11a?
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.
5 GHz
RADIUS Server
2.4 GHz

17. 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
Independent Basic Service Set (IBSS) is ad-hoc wireless
2.4 GHz
Three
Cordless phone interference - antenna type or orientation - and metal filing cabinet reflection of the RF signal can all give rise to connectivity issues.

18. WPA2 uses which encryption method?
Block Acknowledgments
2.4 GHz
AES-CCMP
Overlapping the wireless cell coverage by at least 10%

19. You are connecting your access point and it is set to root. What does extended service set ID mean?
AES-CCMP
WEP & TKIP (WPA) use RC4 WPA2 uses AES
2.4 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.

20. Which encryption type does WPA2 use? WPA?
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.
2.4 GHz
Cordless phone interference - antenna type or orientation - and metal filing cabinet reflection of the RF signal can all give rise to connectivity issues.
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.

21. Name three EAP types that allow us to use wireless LANs in enterprise networks?
2.4 GHz
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.

22. What is the maximum data rate of IEE 902.11b?
WEP & TKIP (WPA) use RC4 WPA2 uses AES
11Mbps
Overlapping the wireless cell coverage by at least 10%
Independent Basic Service Set (IBSS) is ad-hoc wireless

23. Which two wireless encryption methods are based on the RC4 encryption algorithm?
WEP & TKIP (WPA) use RC4 WPA2 uses AES
RC4 algorithm
2.4 GHz
2.4 GHz

24. 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?
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.
PEAP - EAP-FAST - Local-EAP
The SSID is configured incorrectly on the client.

25. What is the maximum data rate of IEEE 802.11g?
54Mpbs
Independent Basic Service Set (IBSS) is ad-hoc wireless
RADIUS Server
5 GHz