A.You can obtain the number of users communicating on an interface by checking the number of specified dynamic address MAC address entries.

B.Dynamic MAC address entries are obtained by learning the source MAC addresses of packets received by an interface, and can be aged out.

C.After a device is reset , an interfaces card is hot swapped , or an interface card is reset , the saved entries on the device or interface card are not lost.

D.After a device is rest , an interface card is hot swapped or an interface card is reset dynamic MAC address entries on the device or interface card are lost.

A.The mask length of the destination network address of the route is 32 bits.

B.The destination network address of the route is 10.0.12.2/32.

C.The preference of the route is 100.

D.The route must exist in the routing table.

A.The DHCP Discover packet carries various configuration information.

B.The DHCP server sends DHCP Discover packets to respond DHCP Request packets.

C.The client sends DHCP Discover packets to search for the DHCP server.

D.The client sends DHCP Discover packets for requesting to confirm the configuration or renew the lease time of the IP address.

A.Host A will send a gratuitous ARP request to resolve the MAC address of the destination 192.168.1.1, for which Host B will reply.

B.Host B will send a gratuitous ARP request to resolve the MAC address of the destination 192.168.1.1, for which Host A will reply.

C.Host B will send an ICMP request to the destination with the configured IP address. If a reply is received, the host will notify of an address conflict.

D.Host A will ignore any received ARP request intended for destination 192.168.1.1.

A.192.240.150.255/24

B.127.2.3.5

C.1.255.255.2/24

D.225.23.200.9