When the router is powered on, it will read the configuration file from the default storage path to initialize the router. If there is no configuration file in the default storage path, what will the router use for initialization?

Which WLAN security policies support the link authentication method of Open mode? (Multiple Choice)

Which statement is wrong about the ARP message?

The Backup ports in RSTP may alternatively failed root port.

If the transport layer protocol is UDP, the value of the network layer Protocol field is 6.