Cisco Certified Network Associate (CCNA) Practice Exam

Is it true that a single IPv6 enabled interface can have multiple addresses?

1. True

2. False

3. Depends on the router configuration

4. Only for certain address types

The correct answer is: True

A single IPv6 enabled interface can indeed have multiple addresses assigned to it, making it a true statement. This capability is part of the design of IPv6 and is fundamental to its operation. In detail, an interface can be assigned multiple global unicast addresses, link-local addresses, and even unique local addresses. This allows for various communication scenarios, such as having different addresses for different services or applications running on the same interface. Moreover, utilizing multiple addresses can also facilitate things like network address translation (NAT) and enhance network management and flexibility. The other choices may imply restrictions or conditionality that do not apply to the inherent design of IPv6 addressing. While certain configurations and address types can influence how addresses are utilized, the overall architecture of IPv6 supports the assignment of multiple addresses to a single interface without limitation based on general configurations or specific address types.