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Dual-stack approach refers to _________

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Dual-stack approach refers to _________

(a) implementing Ipv4 with 2 stacks

(b) implementing Ipv6 with 2 stacks

(c) node has both IPv4 and IPv6 support

(d) implementing a MAC address with 2 stacks

This question was addressed to me during an internship interview.

This key question is from IPv6 topic in division TCP/IP Protocol Suite of Computer Network

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Correct answer is (c) node has both IPv4 and IPv6 support

The best I can explain: Dual-stack is one of the approaches used to support IPv6 in already existing systems. ISPs are using it as a method to transfer from IPv4 to IPv6 completely eventually due to the lower number of possible available addresses in IPv4.

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