An Integrated Air Defense System (IADS) is best described as:

• A. A single interceptor and radar controlled by one operator.
• B. A weather monitoring network used for civil aviation.
• C. A networked system that integrates sensors, weapon systems, communication networks, and C2 to detect, identify, track, and engage aerial threats across defended airspace.
• D. A system that only detects weather patterns.

Answer: (C)

An Integrated Air Defense System is a networked arrangement that ties together sensors, weapon systems, communications networks, and command and control to detect, identify, track, and engage aerial threats across defended airspace. The power of an IADS lies in data fusion and coordinated response: radar and other sensors feed a common picture, identification and threat assessment are performed, decisions are made at the C2 level, and interceptors or other weapons are dynamically allocated and directed to defeat threats. This integration enables rapid, layered defense over the entire defended area, with seamless coordination across sectors, altitude bands, and platforms.

The other descriptions don’t fit because a single interceptor and radar controlled by one operator is a standalone system, not an integrated network; a weather monitoring network and a system that only detects weather patterns describe non-defense or limited sensing functions, not the full defensive integration and engagement capability of an IADS.