Which term describes the process of encapsulating IPv6 packets inside IPv4 packets?（）

单项选择题What is the first 24 bits in a MAC address called?（）

A. NIC
B. BIA
C. OUI
D. VAI

单项选择题When is it necessary to use a public IP address on a routing interface?（）

A. Connect a router on a local network.
B. Connect a router to another router.
C. Allow distribution of routes between networks.
D. Translate a private IP address.
E. Connect a network to the Internet.

单项选择题What will happen if a private IP address is assigned to a public interface connected to an ISP?（）

A. Addresses in a private range will be not routed on the Internet backbone.
B. Only the ISP router will have the capability to access the public network.
C. The NAT process will be used to translate this address in a valid IP address.
D. Several automated methods will be necessary on the private network.
E. A conflict of IP addresses happens, because other public routers can use the same range.

单项选择题Which IP address can be assigned to an Internet interface?（）

A. 10.180.48.224
B. 9.255.255.10
C. 192.168.20.223
D. 172.16.200.18

单项选择题What is the principle reason to use a private IP address on an internal network?（）

A. Subnet strategy for private companies.
B. Manage and scale the growth of the internal network.
C. Conserve public IP addresses so that we do not run out of them.
D. Allow access reserved to the devices.