Multiple choice technology packaged enterprise solutions

Which three of the following are IPv6 transition mechanisms? (Choose three)

  1. 6to4 tunneling

  2. VPN tunneling

  3. ISATAP tunneling

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
AI explanation

The recognized IPv6 transition mechanisms include 6to4 tunneling, ISATAP tunneling, Teredo tunneling, dual-stack, NAT64/NAT-PT, and manual/GRE tunneling. 'VPN tunneling' is not a standard IPv6 transition mechanism in networking curricula (CCNA etc.) — it's a generic security/connectivity technique, not an IPv6-to-IPv4 coexistence mechanism. As given, the four options are: 6to4 (valid), VPN tunneling (not valid), ISATAP (valid), and a meta-option 'Both A and B' that bundles the one valid option (6to4) with the invalid one (VPN tunneling) — which is marked correct. That combination is wrong since VPN tunneling doesn't belong. Additionally the question explicitly asks to 'choose three' mechanisms, but is encoded as MC-1 with only 4 options and no way to select three valid ones (Teredo, the third genuine mechanism, isn't even offered). The item is structurally broken and no single provided option constitutes a correct answer to a 'choose three' question.

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