NTC/362: Fundamentals of Networking
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NTC/362: Fundamentals of Networking
Q: Which of the following succinctly describes the specific address range typically used by IANA for global IPv6 addresses?
A: 2000::/3
Explanation: All IPv6 global routing prefixes assigned by IANA began with 2 or 3. (This address range can be written succinctly as prefix 2000::/3. This means that the first 3 bits must be 001). In hex, the first group of numbers will be in the range of 2000 through 3fff.
2000::/2 indicates that the first 2 bits must be 00, without any control over the third bit (which needs to be on).
000:db8::/16 is an address range targeted for use in documentation (so that we don’t use other people’s addresses as examples contained in training and other generic purposes).
FE80 are link-local addresses.
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