Cisco CCNA Service Provider Question of the Week

CCNASPofw03Which three types of address are IPv6? (pick 3)

    1. Unicast
    2. Multicast
    3. Broadcast
    4. Anycast

The correct answer is 1, 2, and 4.

IPv6 does not support broadcast to help reduce overhead loads on the networks. Unicast is one-to-one communication; multicast is one-to-many communication; anycast looks like a unicast, but there are multiple hosts with the same address to be able to share the load of the process across multiple hosts. Think DNS. For example: 8.8.8.8/32 or 2001:4860:4860::8888/128 are Google public DNS servers. These addresses are supported by multiple servers. You will be routed to the closest host with that address.

Related Courses:
SPNGN1 – Building Cisco Service Provider Next-Generation Networks, Part 1
SPNGN2 – Building Cisco Service Provider Next-Generation Networks, Part 2

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