Which system represents the military fleet of communications satellites in geostationary orbit?

• A. Navy Multi-Band Terminal
• B. Defense Satellite Communication System
• C. Advanced Extremely High Frequency
• D. Global Broadcast System

Answer: (B)

The Defense Satellite Communications System is the DoD’s backbone for wideband, secure communications delivered by a fleet of satellites in geostationary orbit. In GEO, these satellites sit above the same point on the globe, providing stable, predictable links between command centers, ships, and field terminals. That makes it the system specifically described as the military fleet of communications satellites in geostationary orbit.

The Navy Multi-Band Terminal is a user terminal that access DSCS and other networks, not the fleet itself. Advanced Extremely High Frequency is a newer, separate system offering protected communications, but it is a distinct constellation. Global Broadcast System is for wide-area broadcast messaging, not the primary fleet of GEO satellites.