1D0-61C · Question #57
Which of the following is an IPv6 address?
The correct answer is D. 2001:cdba::3257:9652. D is correct because 2001:cdba::3257:9652 follows IPv6 notation: eight groups of four hexadecimal digits separated by colons, with :: as shorthand for consecutive all-zero groups. Why the others are wrong: A (00:14:38:05:7B:E5) is a MAC address - six hex pairs separated by…
Question
Which of the following is an IPv6 address?
Options
- A00:14:38:05:7B:E5
- B10.10.1.1
- C192.168.1.1
- D2001:cdba::3257:9652
How the community answered
(23 responses)- A4% (1)
- C4% (1)
- D91% (21)
Explanation
D is correct because 2001:cdba::3257:9652 follows IPv6 notation: eight groups of four hexadecimal digits separated by colons, with :: as shorthand for consecutive all-zero groups.
Why the others are wrong:
- A (
00:14:38:05:7B:E5) is a MAC address - six hex pairs separated by colons, used to identify network hardware. - B (
10.10.1.1) and C (192.168.1.1) are both IPv4 addresses - four decimal octets (0–255) separated by dots; they're also private/reserved ranges.
Memory tip: IPv6 addresses always contain colons and hexadecimal characters (a–f). If you see dots, it's IPv4; if you see colons with letters like cdba or 3257, it's IPv6. The :: shortcut is a dead giveaway that you're looking at IPv6.
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