Crucial Exams

Certified Ethical Hacker (CEH) Practice Question

While analyzing a packet capture from a busy 2.4 GHz 802.11n network, you notice that all beacon and probe-response frames are transmitted at 1 Mbps, even though the access point advertises data rates exceeding 100 Mbps. Which wireless concept best explains why these management frames are sent at such a low rate?

  • The 802.11ac specification requires all frames to start at the lowest modulation to prevent hidden-node collisions.

  • The access point lowers rates during the four-way WPA handshake to minimize the chance of IV reuse in TKIP.

  • Dynamic frequency selection downgrades management traffic to the minimum rate until channels are negotiated after association completes.

  • Management frames must use a rate from the basic rate set that every station is guaranteed to support, ensuring universal reception.

Certified Ethical Hacker (CEH)
Wireless Network Hacking
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