多选题Which two statements about subnet masks are true?（）AIf a bit is turned on (1), the corresponding bit in the IP address is used for the host portion.BIf a bit is turned off (0), the corresponding bit in the IP address is used for the host portion.CIf a

A network host is configured as follows: Host IP address: 192.168.16.183 Subnet mask: 255.255.255.224 Default gateway: 192.168.16.190 Which of the following statements describe the network to which this host is attached?（）

A. The default gateway is configured on a different subnet form this host.

B. The host is a member of the fifth usable subnet of the 192.168.16.0 network.

C. The subnetwork address for this host is 192.168.16.160/28.

D. The address of the next higher subnet is 192.168.16.192.

E. The address of the router interface that is attached to this subnetwork is 192.168.16.190.

F. There are 60 usable host addresses on this subnet.

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.

Which of the following statements about internet is (are) correct?

Ⅰ.Each host in internet only has a IP address.

Ⅱ.It is possible to have multiple names corresponding to the same IP address.

Ⅲ.In users' points, Internet means a virtual network.

A．None

B．Ⅰ and Ⅱ

C．Ⅱ and Ⅲ

D．All

A.It is used for type 1 router LSA

B.Highest IP address of the loopback is used

C.router-id needs to be matched on ospf neighbors

D.router-id is 16 bit

A.the IP address of Switch 1

B.the MAC address of Switch 1

C.the IP address of Host C

D.the MAC address of Host C

E.the IP address of the router‘s E0 interface

F.the MAC address of the router‘s E0 interface

A. The address is a Class A address.

B. The address is a Class B address.

C. The address is a Class C address.

D. The address is a Class D address.