Cisco Certified Network Associate (CCNA) Practice Exam

What type of addresses are used by companies that do not plan to connect to the Internet?

1. IPv6 Global Unicast

2. IPv6 Unique Local Address

3. IPv6 Multicast

4. IPv6 Link-Local Unicast

The correct answer is: IPv6 Unique Local Address

Companies that do not plan to connect to the Internet typically utilize IPv6 Unique Local Addresses. These addresses are specifically designed for private networks and are not routable on the public Internet. This makes them ideal for organizations that need internal communication within their local network but do not require access to external networks. Unique Local Addresses provide a way for devices inside a network to communicate with one another while being isolated from the broader Internet. They are similar to the IPv4 private address ranges (like 192.168.x.x or 10.x.x.x), serving the same purpose of facilitating internal communication without the necessity of being reachable from outside the network. Other types of addresses, such as Global Unicast, are meant for Internet-routable addresses and therefore would not apply to companies choosing to remain disconnected from the Internet. Multicast addresses are used for one-to-many communication and link-local addresses are limited to a single local network segment, making them unsuitable for broader network configuration needs.