Home » Cisco » 640-911 » What are three reasons to migrate from IPv4 to IPv6?
What are three reasons to migrate from IPv4 to IPv6? (Choose three.)
A. IPv6 eliminates the requirement for NAT.
B. IPv6 includes enough IP addresses to allocate more than four billion IP addresses to every person on earth.
C. IPv6 eliminates the need for VLANs.
D. Hosts can be assigned an IP address without DHCP.
E. Hosts can be assigned an IP address without DNS.
Correct Answer: ABD
Explanation/Reference:
Explanation:
“IPv6 address contains 32 characters vs. 12 in IPv4. This will grant no ip address translation and dynamic changes. We will even don’t need NAT! ” http://www.ipv6.ru/english/history/goipv6.php
“IPv6 uses a 128-bit address, allowing 2128, or approximately 3.4×1038 addresses, or more than 7.9×1028 times as many as IPv4, which uses 32-bit addresses”
http://en.wikipedia.org/wiki/IPv6
