多项选择题
A.Set the IP gateway to be used by the network.
B.Perform host discovery used DHCPDISCOVER message.
C.Configure IP address parameters from DHCP server to a host.
D.Provide an easy management of layer 3 devices.
E.Monitor IP performance using the DHCP server.
F.Assign and renew IP address from the default pool.
单项选择题 Refer to the exhibit. Which rule does the DHCP server use when there is an IP address conflict?（）
单项选择题 How does a DHCP server dynamically assign IP addresses to hosts?（）
单项选择题 A network engineer wants to allow a temporary entry for a remote user with a specific usename and password so that the user can access the entire network over the internet.which ACL can be used?（）