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.
多项选择题 Which three statements are typical characteristics of VLAN arrangements?（）
多项选择题 A network administrator changes the configuration register to 0x2142 and reboots the router. What are two results of making this change?（）
多项选择题 Which two values are used by Spanning Tree Protocol to elect a root bridge?（）