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Cisco Certified Network Associate (CCNA) · Cisco
Select one answer.
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initailly it was suppsoed to be FC00::/7 but then later it was standardised that the 8th bit must be set to one so its fd00 now so I think D is the correct answer
Correct answer: D
A Unique Local Address (ULA) in IPv6 always starts with the binary pattern 11111100, which corresponds to the FC00::/7 address block. These addresses are similar to private IPv4 addresses, used for internal networks and not routable on the public Internet. In practice, only FD00::/8 is currently used for generating ULAs. These are locally assigned addresses using a random 40-bit global ID. FC00::/8 was reserved for future use, possibly for centrally managed ULA space (though this was never implemented!).