300-420 · Question #404
300-420 Question #404: Real Exam Question with Answer & Explanation
The correct answer is C: Layer 2 and Layer 3 switches within each data center that provisions the data center network. To support an IPv6 application across a dual-site, mixed Layer 2/Layer 3 network, all switches (both Layer 2 and Layer 3) participating in the VLAN must be capable of dual stacking to transport both IPv4 and IPv6 traffic.
Question
A company must run a pilot project for an IPv6 application within the network on existing servers and is investigating migration strategies. Contained within a single VLAN, the pilot must span a dual-site data center environment that is formed of Layer 2 and Layer 3 switches. What is a primary consideration for the pilot?
Options
- AHosts within each data center that participates in the pilot must support dual stacking.
- BLayer 3 switches within each data center that provisions the network must support dual stacking.
- CLayer 2 and Layer 3 switches within each data center that provisions the data center network
- DLayer 2 switches within each data center that provisions the VLAN must support dual stacking.
Explanation
To support an IPv6 application across a dual-site, mixed Layer 2/Layer 3 network, all switches (both Layer 2 and Layer 3) participating in the VLAN must be capable of dual stacking to transport both IPv4 and IPv6 traffic.
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