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The size of an IP address in IPv6 is _________(a) 4bytes(b) 128bits(c) 8bytes(d) 100bitsI got this question during an interview.My question is based upon IPV4 and IPV6 Comparision in portion TCP/IP Protocol Suite of Computer Network

Answer»

Correct choice is (b) 128bits

The best I can explain: An IPv6 address is 128 bits long. Therefore, 2^128 i.e. 340 undecillion UNIQUE addresses are available in IPv6. IPV4 has only 4 billion possible addresses and IPv6 WOULD be a brilliant alternative in CASE IPv4 runs out of possible NEW addresses.



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