What are the main advisory categories in TCAS II?

• A. Traffic Advisories (TA) and Resolution Advisories (RA) with directional guidance.
• B. Hazard Advisories and Separation Warnings
• C. Weather Advisories and Operational Advisories
• D. Altitude Advisory and Distance Advisory

Answer: (B)

TCAS II focuses on two advisory types that guide how you respond to nearby traffic. Traffic Advisories alert you that another aircraft is present and give situational awareness about its relative position and trend. Resolution Advisories go further by providing specific maneuver guidance to avoid a collision, typically including directional instructions such as climb or descend to maintain safe separation.

This framework is what you’d expect from TCAS II in active encounters. The other options don’t fit TCAS II’s terminology: hazard advisories, weather advisories, operational advisories, and altitude or distance advisories aren’t the standard advisory categories used by TCAS II. So the description that pairs Traffic Advisories with Resolution Advisories (including directional guidance) is the correct concept.