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  1. The need for data replication can arise in various scenarios like :
    2. A.
    Replication Factor is changed
    B.
    DataNode goes down
    C.
    Data Blocks get corrupted
    D.
    All of the mentioned

    View Answer

    Workspace

    View Answer

    Answer : Option D

    Explanation :

    Data is replicated across different DataNodes to ensure a high degree of fault-tolerance.

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