Which two statements about a wireless repeater topology are true？（）

• A、A wireless repeater is an access point that is not connected to the wired LAN.
• B、The repeater feature is only available in lightweight access point topologies.
• C、The SSID of the root access point must be configured on the repeater access point.
• D、This topology requires a 10 - 15 percent overlap between a wired access point and the wireless repeater.
• E、This topology requires a 15 - 25 percent overlap between a wired access point and the wireless repeater.
• F、To avoid interference， the repeater access point must use a different channel from what the root access point uses.