Which of the following statements about VLANIF interfaces are correct?

In the network as shown in the figure below, the host has an ARP cache. Which of the following statements is correct? (Multiple Choice)

Which of the following descriptions about firewalls is wrong?

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?

What kind of message does the DHCP server use to confirm that the host can use the IP address?