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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?
5 GHz
The three basic parameters to configure when setting up an access point are the SSID - the RF channel - and the authentication method.
PEAP - EAP-FAST - Local-EAP
WEP & TKIP (WPA) use RC4 WPA2 uses AES

2. Which wireless LAN design ensures that a mobile wireless client will not lose connectivity when moving from one access point to another?
Cordless phone interference - antenna type or orientation - and metal filing cabinet reflection of the RF signal can all give rise to connectivity issues.
RC4 algorithm
IEEE 802.11i
Overlapping the wireless cell coverage by at least 10%

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?
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.
The SSID is configured incorrectly on the client.
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.

4. 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?
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.
SSID
RADIUS Server

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

6. WPA2 uses which encryption method?
Block Acknowledgments
The SSID is configured incorrectly on the client.
AES-CCMP
Three

7. What is the maximum data rate for the 802.11a standard?
IEEE 802.11i
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
54 Mbps

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

9. What is the frequency range of IEEE 802.11a?
5 GHz
54Mpbs
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.
SSID

10. What is the maximum data rate of IEE 902.11b?
The three basic parameters to configure when setting up an access point are the SSID - the RF channel - and the authentication method.
54Mpbs
11Mbps
Three

11. What is the frequency range of IEEE 802.11g?
RC4 algorithm
2.4 GHz
54Mpbs
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.

12. Which feature of 802.11n provides MAC efficiency?
Block Acknowledgments
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.
IEEE 802.11i

13. Which encryption type does WPA2 use? WPA?
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.
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
PEAP - EAP-FAST - Local-EAP

14. What is the maximum data rate of IEEE 802.11g?
Independent Basic Service Set (IBSS) is ad-hoc wireless
54Mpbs
The SSID is configured incorrectly on the client.
IEEE 802.11i

15. 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.
WEP & TKIP (WPA) use RC4 WPA2 uses AES
54Mpbs
Three

16. Describes the wireless security standard that WPA defines?
Cordless phone interference - antenna type or orientation - and metal filing cabinet reflection of the RF signal can all give rise to connectivity issues.
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 three basic parameters to configure when setting up an access point are the SSID - the RF channel - and the authentication method.
Block Acknowledgments

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
5 GHz
RC4 algorithm
Cordless phone interference - antenna type or orientation - and metal filing cabinet reflection of the RF signal can all give rise to connectivity issues.
Overlapping the wireless cell coverage by at least 10%

18. Name three EAP types that allow us to use wireless LANs in enterprise networks?
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.
PEAP - EAP-FAST - Local-EAP
Three
Overlapping the wireless cell coverage by at least 10%

19. What is the frequency range of IEEE 802.11b?
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.
Independent Basic Service Set (IBSS) is ad-hoc wireless
2.4 GHz

20. How many non-overlapping channels are available with 802.11b?
AES-CCMP
PEAP - EAP-FAST - Local-EAP
Three
5 GHz

21. The TKIP encryption is based on the...
5 GHz
RC4 algorithm
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

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

23. Which IEEE committee has been sanctioned by WPA and is called WPA2?
11Mbps
IEEE 802.11i
Block Acknowledgments
The SSID is configured incorrectly on the client.

24. What are three basic parameters to configure on a wireless access point?
Changing the default SSID value and administrator password
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.
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.
The three basic parameters to configure when setting up an access point are the SSID - the RF channel - and the authentication method.

25. Which two practices help secure the configuration utilities on wireless access points from unauthorized access?
Changing the default SSID value and administrator password
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.
AES-CCMP
54 Mbps