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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. The TKIP encryption is based on the...
11Mbps
WEP & TKIP (WPA) use RC4 WPA2 uses AES
RADIUS Server
RC4 algorithm

2. What is the frequency range of IEEE 802.11b?
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.
SSID
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

3. Which feature of 802.11n provides MAC efficiency?
54Mpbs
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.
Block Acknowledgments

4. 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 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.
54 Mbps
The SSID is configured incorrectly on the client.

5. 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
Cordless phone interference - antenna type or orientation - and metal filing cabinet reflection of the RF signal can all give rise to connectivity issues.
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.
RC4 algorithm
IEEE 802.11i

6. Which wireless LAN design ensures that a mobile wireless client will not lose connectivity when moving from one access point to another?
11Mbps
Overlapping the wireless cell coverage by at least 10%
IEEE 802.11i
54 Mbps

7. Which two wireless encryption methods are based on the RC4 encryption algorithm?
54 Mbps
WEP & TKIP (WPA) use RC4 WPA2 uses AES
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.

8. Describes the wireless security standard that WPA defines?
SSID
5 GHz
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.

9. What is the maximum data rate for the 802.11a standard?
Independent Basic Service Set (IBSS) is ad-hoc wireless
The SSID is configured incorrectly on the client.
11Mbps
54 Mbps

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

11. What are three basic parameters to configure on a wireless access point?
IEEE 802.11i
Independent Basic Service Set (IBSS) is ad-hoc wireless
Cordless phone interference - antenna type or orientation - and metal filing cabinet reflection of the RF signal can all give rise to connectivity issues.
The three basic parameters to configure when setting up an access point are the SSID - the RF channel - and the authentication method.

12. Which encryption type does WPA2 use? WPA?
54 Mbps
WPA2 uses AES-CCMP for encryption. WPA uses TKIP.
Block Acknowledgments
PEAP - EAP-FAST - Local-EAP

13. 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
RC4 algorithm
54Mpbs

14. 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?
RC4 algorithm
5 GHz
AES-CCMP
SSID

15. 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.
11Mbps
IEEE 802.11i
Changing the default SSID value and administrator password

16. Which two features did WPA add to address the inherent weaknesses found in WEP?
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.
RADIUS Server
The SSID is configured incorrectly on the client.

17. WPA2 uses which encryption method?
AES-CCMP
IEEE 802.11i
Independent Basic Service Set (IBSS) is ad-hoc wireless
WEP & TKIP (WPA) use RC4 WPA2 uses AES

18. What device must be on your wired network when running an enterprise EAP solution?
RADIUS Server
RC4 algorithm
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.

19. 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.
PEAP - EAP-FAST - Local-EAP
WEP & TKIP (WPA) use RC4 WPA2 uses AES
2.4 GHz

20. What is the frequency range of IEEE 802.11a?
Three
The three basic parameters to configure when setting up an access point are the SSID - the RF channel - and the authentication method.
AES-CCMP
5 GHz

21. What is the frequency range of IEEE 802.11g?
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
11Mbps
2.4 GHz

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

23. What is the maximum data rate of IEEE 802.11g?
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
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.

24. How many non-overlapping channels are available with 802.11b?
Three
AES-CCMP
Block Acknowledgments
RADIUS Server

25. Which IEEE committee has been sanctioned by WPA and is called WPA2?
11Mbps
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.
IEEE 802.11i