What is a characteristic of the WLAN passive discover mode?The client must know the name of the SSID to begin the discover process.The client begins the discover process by sending a probe request.The AP periodically sends beacon frames containing the SSID.The beaconing feature on the AP is disabled.

Sure, let's break down the question and analyze each option step by step to determine the characteristic of the WLAN passive discovery mode.

1. The client must know the name of the SSID to begin the discover process.

   • In passive discovery mode, the client does not need to know the SSID beforehand. The client listens for beacon frames sent by the Access Points (APs) to discover available networks. Therefore, this statement is not a characteristic of passive discovery mode.

2. The client begins the discover process by sending a probe request.

   • This describes active discovery mode, not passive discovery mode. In active discovery, the client sends probe requests to find available networks. Therefore, this statement is not a characteristic of passive discovery mode.

3. The AP periodically sends beacon frames containing the SSID.

   • This is a key characteristic of passive discovery mode. In passive discovery, the AP periodically sends out beacon frames that contain information about the network, including the SSID. Clients listen for these beacons to discover available networks.

4. The beaconing feature on the AP is disabled.

   • If the beaconing feature were disabled, the AP would not send out beacon frames, which would prevent clients from discovering the network passively. Therefore, this statement is not a characteristic of passive discovery mode.

Based on the analysis, the correct characteristic of the WLAN passive discovery mode is:

The AP periodically sends beacon frames containing the SSID.