Which statement best describes STIX and TAXII relationship?

• A. STIX is a standardized language for sharing threat information, while TAXII defines how threat information can be shared via services and message exchanges
• B. They are unrelated
• C. TAXII is a threat actor, STIX is a defense framework
• D. STIX is a data format for network protocols

Answer: (A)

STIX provides a standardized language for describing threat information, including indicators, campaigns, attack patterns, and relationships, so different teams can share a common understanding of what happened. TAXII defines how that information is shared—the services and message exchanges used to publish, discover, pull, and push threat data across systems and organizations. In practice, you create STIX data and move it around using TAXII’s transport and APIs. That makes this pairing the best description: STIX is the data format, TAXII is the sharing mechanism. The other statements don’t fit because STIX isn’t a defense framework or a network-protocol data format, and they aren’t unrelated.