CWNA-108 · Question #103
You are the network administrator for ABC Company. Your manager has recently attended a wireless security seminar. The seminar speaker taught that a wireless network could be hidden from potential…
The correct answer is B. Any 802.11 protocol analyzer can see the SSID in clear text in frames other than Beacons. Although implementing a closed network may hide your SSID from some of these WLAN discovery tools, anyone with a layer 2 wireless protocol analyzer can capture the frames transmitted by any legitimate end user and discover the SSID, which is transmitted in clear-text. In other…
Question
You are the network administrator for ABC Company. Your manager has recently attended a wireless security seminar. The seminar speaker taught that a wireless network could be hidden from potential intruders if you disabled the broadcasting of the SSID in Beacons and configured the access points not to respond to Probe Request frames that have a null SSID field. Your manager suggests implementing these security practices. What response should you give to this suggestion?
Options
- AAny tenants in the same building using advanced penetration testing tools will be able to obtain
- BAny 802.11 protocol analyzer can see the SSID in clear text in frames other than Beacons
- CTo improve security by hiding the SSID, the AP and client stations must both be configured to
- DThis security practice prevents manufacturers' client utilities from detecting the SSID. As a result,
How the community answered
(25 responses)- A12% (3)
- B80% (20)
- C4% (1)
- D4% (1)
Explanation
Although implementing a closed network may hide your SSID from some of these WLAN discovery tools, anyone with a layer 2 wireless protocol analyzer can capture the frames transmitted by any legitimate end user and discover the SSID, which is transmitted in clear-text. In other words, a hidden SSID can be found, usually in seconds, with the proper tools. Many wireless professionals will argue that hiding the SSID is a waste of time, whereas others view a closed network as just another layer of security.
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