What is a valid IPv6 address?

The correct answer is C. 2001:0db8:3000:2215:0000:0000:aaaa:1111. This question requires identifying a correctly formatted IPv6 address from the given choices.

Junos OS Fundamentals

Question

Options

A00:05:85:23:45:67
B127.0.0.1
C2001:0db8:3000:2215:0000:0000:aaaa:1111
D49.0001.0192.0168.1001.00

How the community answered

(66 responses)

A
3% (2)
B
2% (1)
C
88% (58)
D
8% (5)

Why each option

This question requires identifying a correctly formatted IPv6 address from the given choices.

A00:05:85:23:45:67

This format, consisting of six two-digit hexadecimal segments separated by colons, is characteristic of a MAC address, not an IPv6 address.

B127.0.0.1

127.0.0.1 is a valid IPv4 loopback address, not an IPv6 address.

C2001:0db8:3000:2215:0000:0000:aaaa:1111Correct

2001:0db8:3000:2215:0000:0000:aaaa:1111 is a valid IPv6 address, composed of eight 16-bit hexadecimal segments separated by colons, adhering to the standard IPv6 address format.

D49.0001.0192.0168.1001.00

This format is not a standard IPv4 or IPv6 address; IPv4 uses four decimal octets, and IPv6 uses eight hexadecimal hextets.

Concept tested: IPv6 address format identification

Source: https://learn.microsoft.com/en-us/windows-server/networking/technologies/ipv6/ipv6-basics#ipv6-address-format

Topics

#IPv6 addressing#IPv6 format

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