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400-007 · Question #279
400-007 Question #279: Real Exam Question with Answer & Explanation
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Question
Sometimes SDN leverages various overlay networking technologies to create layer(s) of network abstraction. What describes an overlay network?
Options
- AIt transmits packets that traverse over network devices like switches and routers
- BIt encapsulates packets at source and destination, which incurs additional overhead
- CPacket delivery and reliability occurs at Layer 3 and Layer 4
- DIt is responsible for the delivery of packets; NAT- or VRF-based segregation is required
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