GIAC
GCIA · Question #89
GCIA Question #89: Real Exam Question with Answer & Explanation
The correct answer is C. Tunneling. This question tests knowledge of IPv4-to-IPv6 transition mechanisms, specifically which method wraps IPv6 traffic inside IPv4 packets to cross IPv4-only infrastructure.
Question
Which of the following IPv4 to IPv6 transition methods uses encapsulation of IPv6 packets to traverse IPv4 networks?
Options
- ADual-stack
- BTranslation
- CTunneling
- DStack
Explanation
This question tests knowledge of IPv4-to-IPv6 transition mechanisms, specifically which method wraps IPv6 traffic inside IPv4 packets to cross IPv4-only infrastructure.
Common mistakes.
- A. Dual-stack configures devices to run both IPv4 and IPv6 simultaneously without encapsulating one protocol inside the other.
- B. Translation converts packet headers between IPv4 and IPv6 (e.g., NAT64) rather than encapsulating one inside the other.
- D. Stack is not a defined IPv4-to-IPv6 transition mechanism; it is a distractor.
Concept tested. IPv6 tunneling transition mechanism encapsulation
Reference. https://learn.microsoft.com/en-us/azure/virtual-network/ipv6-overview
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