300-320 Question #83: Real Exam Question with Answer & Explanation

The correct answer is C: dual stack. Dual stack is the preferred and most versatile IPv6 deployment model. By enabling both IPv4 and IPv6 on every node and interface, dual stack allows hosts to communicate natively in either protocol without tunneling or translation overhead. This avoids the complexity and latency i

Question

Which option is the preferred and most versatile model to deploy IPv6 in existing IPv4 environments?

Options

Ahybrid
Bservice block
Cdual stack
Dprocesses

Explanation

Dual stack is the preferred and most versatile IPv6 deployment model. By enabling both IPv4 and IPv6 on every node and interface, dual stack allows hosts to communicate natively in either protocol without tunneling or translation overhead. This avoids the complexity and latency introduced by mechanisms like 6to4 tunneling or NAT64. 'Processes,' 'hybrid,' and 'service block' are not recognized standard IPv6 transition models.

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