The load percentage of an AP is calculated by dividing the number of associated STAs by the maximum number of STAs supported by the AP. In this case, the load percentage of AP_1 is 4/10 = 40%, and that of AP_2 is 1/10 = 10%. The load balancing mechanism needs to be enabled to balance the load between AP_1 and AP_2. Then some STAs are steered from AP_1 to AP_2 based on the load balancing threshold and the load difference threshold.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/load-balancing

URL filtering supports four matching modes: exact matching, suffix matching, prefix matching, and keyword matching. The priority order of these modes is as follows:
* Exact matching: The highest priority. An exact match means that a URL entered by a user is exactly the same as a URL in a blacklist or whitelist.
* Suffix matching: The second highest priority. A suffix match means that a URL entered by a user ends with a suffix in a blacklist or whitelist.
* Prefix matching: The third highest priority. A prefix match means that a URL entered by a user starts with a prefix in a blacklist or whitelist.
* Keyword matching: The lowest priority. A keyword match means that a URL entered by a user contains a keyword in a blacklist or whitelist.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/url-filtering

WPA3 has the following advantages over WPA and WPA2:
* Supports WPA3-SAE, which provides more secure authentication and key management than PSK.
* Provides a more secure handshake protocol than 802.11i, which can resist offline dictionary attacks and protect forward secrecy.
* Enhances the algorithm strength from AES-128 to AES-192 or AES-256.
* Supports Suite A cryptography, which provides higher security levels for government or military networks.
References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/wpa3