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352-001 · Question #194
352-001 Question #194: Real Exam Question with Answer & Explanation
The correct answer is C: dual stack. Of all IPv6 transition technologies, only dual stack and IPv6-in-IP tunneling natively support IPv6 multicast traffic.
Question
ACME Corporation is integrating IPv6 into their network, which relies heavily on multicast distribution of data. Which two IPv6 integration technologies support IPv6 multicast? (Choose two.)
Options
- A6VPE
- B6PE
- Cdual stack
- DISATAP
- E6to4
- FIPv6INIP
Explanation
Of all IPv6 transition technologies, only dual stack and IPv6-in-IP tunneling natively support IPv6 multicast traffic.
Common mistakes.
- A. 6VPE transports IPv6 over an MPLS VPN core using label switching for unicast prefixes and does not provide a mechanism to forward IPv6 multicast traffic.
- B. 6PE uses MPLS label imposition to carry IPv6 unicast routes across an MPLS backbone and has no support for IPv6 multicast forwarding.
- D. ISATAP is explicitly designed for unicast IPv6-over-IPv4 tunneling within a site and lacks any multicast support by specification.
- E. 6to4 automatic tunneling embeds an IPv4 address in an IPv6 prefix for unicast connectivity only and cannot carry IPv6 multicast traffic.
Concept tested. IPv6 transition technologies and multicast support
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