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Question 22 - 100-490 discussion

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What is the correct IPv6 address notation?

A.

2001:0DB8::/128

Answers
A.

2001:0DB8::/128

B.

2001:0DB8:0::

Answers
B.

2001:0DB8:0::

C.

2001:0DB8::1:1:1:1:1

Answers
C.

2001:0DB8::1:1:1:1:1

D.

2001:0DB8:130F:0000:0000:7000:0000:140B

Answers
D.

2001:0DB8:130F:0000:0000:7000:0000:140B

Suggested answer: D

Explanation:

The correct IPv6 address notation follows the format of eight groups of four hexadecimal digits, separated by colons. The address must have exactly eight groups unless it uses the double colon (::) to represent consecutive groups of zero value. The double colon can only appear once in an address to avoid ambiguity.

Option A is incorrect because it includes a subnet mask (/128) which is not part of the actual address notation. Option B is incomplete as it does not contain enough groups and ends with a single colon. Option C has too many groups (nine instead of eight) and is therefore not a valid IPv6 address. Option D is the correct notation with eight groups of four hexadecimal digits, where necessary leading zeros are included.

IPv6 Address Types, Notation, and Structure Explained1.

IPv6 address formats - IBM2. =========================

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asked 07/10/2024
Anil Dehriya
35 questions
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