A server administrator is assigning an internally routable IPv6 unique local address to servers in a datacenter. Which of the following network addresses should the administrator assign to a server?

The correct answer is C. 2901:4868:4800::8844. NOTE: The listed correct answer (C) appears to be a question error. IPv6 Unique Local Addresses (ULA) are defined in RFC 4193 with the prefix FC00::/7 - in practice, addresses beginning with 'fd' (FD00::/8) are the locally-assigned ULA range used in private networks. Answer D…

Server administration

Question

Options

A10.40.251.33
B192.168.0.10
C2901:4868:4800::8844
Dfd00:1348:4ef0:1ab9::1fd4

How the community answered

(61 responses)

A
3% (2)
B
5% (3)
C
90% (55)
D
2% (1)

Explanation

NOTE: The listed correct answer (C) appears to be a question error. IPv6 Unique Local Addresses (ULA) are defined in RFC 4193 with the prefix FC00::/7 - in practice, addresses beginning with 'fd' (FD00::/8) are the locally-assigned ULA range used in private networks. Answer D (fd00:1348:4ef0:1ab9::1fd4) starts with 'fd', making it a valid ULA. Answers A and B are IPv4 addresses, not IPv6. Answer C (2901:4868:4800::8844) starts with '29xx', which falls within the global unicast range (2000::/3) and is publicly routable - not a ULA. If this question appeared on an exam with C marked correct, it is likely a typo or keying error in the answer key; D is the technically correct choice for an internally routable IPv6 ULA.

Topics

#IPv6 addressing#unique local address#network administration#IPv6 prefixes

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