NETWORK LAYER
NEXT GENERATION IP
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The header length for an IPv6 datagram is:
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8
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20
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32
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40
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Explanation:
Detailed explanation-1: -header is always 40 bytes long. Considering that IPv6 addresses are 4-times the length of IPv4 addresses, the IPv6 header size (40 bytes) compares favorably with the IPv4 header size of 20 bytes in the absence of options.
Detailed explanation-2: -The correct answer is 128 bits. An IPv6 address has a size of 128 bits.
Detailed explanation-3: -An IPv6 address is 128 bits long. Therefore, 2128 i.e. 340 undecillion addresses are possible in IPv6.
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