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H12-811 Exam - Question 79


Which of the following packets are exchanged between STAs and an AP to obtain the AP’s SSID before association with the AP? (Choose all that apply.)

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Correct Answer: ACD

Before association with an Access Point (AP), Stations (STAs) need to identify and select which AP to associate with. This process typically involves both passive and active scanning. In passive scanning, STAs listen for Beacon frames sent periodically by the AP to advertise its presence and SSID. In active scanning, STAs send out Probe Request frames to solicit responses from APs within range. The AP then replies with Probe Response frames, providing the SSID and other information. Thus, the packets involved in this process are Beacon, Probe Request, and Probe Response.

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hafizhou
Dec 2, 2023

AC is correct

andrpercudOptions: AC
Sep 27, 2024

o obtain the AP's SSID before association, the following packets are exchanged between STAs (Station) and an AP (Access Point): Probe Request: This packet is sent by the STA to discover nearby APs and includes the SSID it is looking for (or a request for all SSIDs). Beacon: This packet is regularly transmitted by the AP to announce its presence and includes the SSID and other network information. Probe Response: This packet is sent by the AP in response to a Probe Request. It contains information about the AP, including the SSID. Summary of Correct Answers: Probe Request Beacon Probe Response The option Discovery is not a specific packet type used in this context.

js293Options: AD
Apr 16, 2025

question said first STA so it is supose STA discover SSID. So in this case is a active mode of discovery where STA starts.