In Cisco SD-WAN, what does a data policy define?
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Correct answer: A set of statements that determine how data is forwarded based on IP packet fields and specific VPNs.
Why this is the answer
A data policy in Cisco SD-WAN defines how data traffic is forwarded across the overlay network. It uses an ordered list of match-action statements to inspect IP packet fields (like source/destination IP, port, protocol, DSCP) and VPNs, then applies actions such as dropping, forwarding to a specific tunnel, or modifying traffic attributes. This allows for granular control over traffic flow, quality of service (QoS), and security. The other options are incorrect because: an ordered list of statements defining node configuration and authentication describes a control policy; a detailed database mapping address types to their locations describes a TLOC (Transport Locator) table; and a group of tests that verify device and link liveliness within the overlay describes BFD (Bidirectional Forwarding Detection).
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