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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.
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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 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.
54Mpbs
SSID
54 Mbps

2. Which two features did WPA add to address the inherent weaknesses found in WEP?
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
The three basic parameters to configure when setting up an access point are the SSID - the RF channel - and the authentication method.
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.

3. WPA2 uses which encryption method?
The three basic parameters to configure when setting up an access point are the SSID - the RF channel - and the authentication method.
54Mpbs
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.
AES-CCMP

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

5. What is the maximum data rate of IEEE 802.11g?
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.
54Mpbs
11Mbps
Block Acknowledgments

6. Which feature of 802.11n provides MAC efficiency?
2.4 GHz
Block Acknowledgments
The three basic parameters to configure when setting up an access point are the SSID - the RF channel - and the authentication method.
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.

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

8. What is the maximum data rate for the 802.11a standard?
Block Acknowledgments
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
54 Mbps

9. 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?
Overlapping the wireless cell coverage by at least 10%
PEAP - EAP-FAST - Local-EAP
Cordless phone interference - antenna type or orientation - and metal filing cabinet reflection of the RF signal can all give rise to connectivity issues.
The SSID is configured incorrectly on the client.

10. What is the maximum data rate of IEE 902.11b?
The SSID is configured incorrectly on the client.
Block Acknowledgments
The three basic parameters to configure when setting up an access point are the SSID - the RF channel - and the authentication method.
11Mbps

11. Which two wireless encryption methods are based on the RC4 encryption algorithm?
SSID
WEP & TKIP (WPA) use RC4 WPA2 uses AES
PEAP - EAP-FAST - Local-EAP
54Mpbs

12. Which wireless LAN design ensures that a mobile wireless client will not lose connectivity when moving from one access point to another?
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.
Overlapping the wireless cell coverage by at least 10%
5 GHz
RC4 algorithm

13. 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.
54Mpbs
Cordless phone interference - antenna type or orientation - and metal filing cabinet reflection of the RF signal can all give rise to connectivity issues.
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. How many non-overlapping channels are available with 802.11b?
Three
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.
2.4 GHz
PEAP - EAP-FAST - Local-EAP

15. 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
54Mpbs
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
RC4 algorithm

16. Which IEEE committee has been sanctioned by WPA and is called WPA2?
Independent Basic Service Set (IBSS) is ad-hoc wireless
Changing the default SSID value and administrator password
Three
IEEE 802.11i

17. 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?
Block Acknowledgments
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.
AES-CCMP
SSID

18. What is the frequency range of IEEE 802.11a?
RC4 algorithm
5 GHz
The SSID is configured incorrectly on the client.
AES-CCMP

19. What device must be on your wired network when running an enterprise EAP solution?
SSID
WEP & TKIP (WPA) use RC4 WPA2 uses AES
RADIUS Server
Block Acknowledgments

20. What is the frequency range of IEEE 802.11g?
WEP & TKIP (WPA) use RC4 WPA2 uses AES
11Mbps
2.4 GHz
54Mpbs

21. Which two practices help secure the configuration utilities on wireless access points from unauthorized access?
Changing the default SSID value and administrator password
WEP & TKIP (WPA) use RC4 WPA2 uses AES
5 GHz
RADIUS Server

22. You are connecting your access point and it is set to root. What does extended service set ID mean?
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.
IEEE 802.11i
SSID

23. The TKIP encryption is based on the...
AES-CCMP
RADIUS Server
RC4 algorithm
SSID

24. Two workers have established wireless communication directly between their wireless laptops. What type of wireless topology has been created by these employees?
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.
Independent Basic Service Set (IBSS) is ad-hoc wireless
PEAP - EAP-FAST - Local-EAP
RC4 algorithm

25. Name three EAP types that allow us to use wireless LANs in enterprise networks?
PEAP - EAP-FAST - Local-EAP
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.
Block Acknowledgments
WEP & TKIP (WPA) use RC4 WPA2 uses AES