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    Question

    C-DOT and STL achieved India’s first Quantum Key

    Distribution over how many kilometers using Multi-Core Fibre?
    A 50 km Correct Answer Incorrect Answer
    B 70 km Correct Answer Incorrect Answer
    C 80 km Correct Answer Incorrect Answer
    D 100 km Correct Answer Incorrect Answer
    E 120 km Correct Answer Incorrect Answer

    Solution

    The Quantum Key Distribution (QKD) transmission over a Multi-Core Fibre (MCF) by C-DOT and STL was successfully demonstrated over 100 km, enabling quantum-secure communication with high stability.

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