Which two options are the main data encoding formats that are commonly used in Application Programming Interfaces? (Choose two.)

Last Updated: May 1, 2026
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Which two options are the main data encoding formats that are commonly used in Application Programming Interfaces? (Choose two.)

  • HTML
  • JSON
  • PDF
  • XML
  • DOCX

Explanation: The two main data encoding formats commonly used in modern APIs are XML and JSON. These formats are favored for data transmission because they are human-readable (self-describing), hierarchical (storing values within values), and easily parsable by many programming languages. While other formats like YAML exist, XML and JSON are the core encodings supported by next-generation programmatic interfaces such as NETCONF and RESTCONF to ensure machine-to-machine communication is both efficient and predictable.

Related exam: Modules 21 – 22: Checkpoint Exam: Programmability Answers (CCNP ENCOR v9)

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