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Question
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What is the maximum number of bits in an IPv6 address?
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32 bits
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128 bits
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256 bits
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128 bits
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Explanation:
Detailed explanation-1: -IPv6 uses 128-bit (2128) addresses, allowing 3.4 x 1038 unique IP addresses. This is equal to 340 trillion trillion trillion IP addresses. IPv6 is written in hexadecimal notation, separated into 8 groups of 16 bits by the colons, thus (8 x 16 = 128) bits in total.
Detailed explanation-2: -An IPv6 address is 128 bits long.
Detailed explanation-3: -128 bit was chosen because it provides enough IPs that we can waste a lot of them on things like IPv4 compatibility mechanisms, convenience, etc; and ensure that we don’t need crap like NAT, restoring end-to-end routability to the Internet.
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