正解:B
The WLAN security settings indicate that the PSK (Pre-Shared Key) is enabled, which typically requires a passphrase or text string for authentication. However, since the question specifies that the configuration is based on the exhibit, and without the ability to view the exhibit, it's not possible to provide a definitive answer. Generally, if PSK is used, a text string would be the method for clients to authenticate to the network.
If 802.1X is enabled, then username and password would be used. References := Implementing and Operating Cisco Service Provider Network Core Technologies