How does NETCONF/YANG represent configuration and state data?
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Correct answer: in an XML tree format.
Why this is the answer
NETCONF (Network Configuration Protocol) uses YANG (Yet Another Next Generation) as its data modeling language. YANG models define the structure and constraints of configuration and state data. When NETCONF exchanges this data, it serializes it into an XML (Extensible Markup Language) tree format. This allows for a hierarchical, human-readable, and machine-parsable representation of network device configurations and operational states. While YANG defines the strict data structures (as mentioned in one incorrect option), the actual data exchange format is XML. HTML is a markup language for web pages, not for network device configuration data. "Modules within a tree" describes how YANG models are organized, but not the format of the data itself.
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