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UPSC 2026ScienceModerate

Which of the following statements with regard to drone swarms is/are correct ? 1. They use Terahertz band of frequency to communicate with the command centre. 2. Individual drones in the swarm can communicate with other drones in the swarm. 3. GPS Spoofing is a commonly used technique to counter drone swarm attack. Select the answer using the code given below :

A
1 only
B
2 and 3 only
Correct answer
C
1 and 2 only
D
1, 2 and 3

Explanation

In a swarm, drones talk to one another over a mesh network to coordinate their behaviour, and GPS spoofing and jamming are common counter-swarm measures, so 2 and 3 are correct. Swarms normally link to their command centre over radio frequency bands; terahertz signals fade quickly in the atmosphere and are not the standard command link, so statement 1 is wrong.

Defence TechnologyDrone swarms and counter-drone systemsDrone swarmSwarm communicationGPS spoofingCounter-UASMesh network

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