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Exam CWAP-404 Topic 1 Question 36 Discussion

Actual exam question for CWNP's CWAP-404 exam
Question #: 36
Topic #: 1
After examining a Beacon frame decode you see the SSID Element has a length of 0. What do you conclude about this frame?

Suggested Answer: D Vote an answer

Explanation
If the SSID element has a length of 0 in a Beacon frame decode, it means that the beacon is from a BSS configured to hide the SSID. The SSID element is a part of the Beacon frame that contains the name or identifier of the BSS. The SSID element has two fields: length and value. The length field indicates how many bytes are used for the value field, which contains the actual SSID string. If the length field is 0, it means that there is no value field or SSID string in the element. This is a common technique used by some APs to hide their SSID from passive scanning clients or potential attackers. However, this technique does not provide much security, as there are other ways to discover or reveal the hidden SSID, such as active scanning or capturing probe response or association frames. References: [Wireless Analysis Professional Study Guide CWAP-404], Chapter 5: 802.11 MAC Sublayer, page 122-123

by Lewis at Jan 25, 2024, 11:23 AM

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