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    Question

    Which of the following is a core characteristic of Big

    Data?
    A Scalability in terms of hardware and software resources. Correct Answer Incorrect Answer
    B The use of blockchain technology to ensure data integrity Correct Answer Incorrect Answer
    C The presence of structured data only, without variability Correct Answer Incorrect Answer
    D The ability to handle high volume, velocity, and variety of data. Correct Answer Incorrect Answer
    E A strong focus on providing machine learning-based predictions. Correct Answer Incorrect Answer

    Solution

    Big Data refers to extremely large datasets that traditional data management tools cannot efficiently process or analyze. Its defining characteristics, commonly known as the "3Vs," are:

    • Volume: Refers to the vast amount of data generated daily, such as data from social media, IoT devices, or transaction logs.
    • Velocity: Indicates the speed at which this data is produced and processed. Real-time analytics, for example, relies on handling high-velocity data streams.
    • Variety: Represents the diverse forms of data, including structured (e.g., databases), semi-structured (e.g., JSON, XML), and unstructured (e.g., images, videos, emails).
    These characteristics distinguish Big Data from traditional datasets and highlight the need for specialized technologies like Hadoop, Spark, or cloud-based analytics platforms. Big Data is crucial for deriving actionable insights in fields like healthcare, finance, and retail. Why Other Options Are Incorrect: ·         Option A: While scalability is essential for Big Data infrastructure, it is not a defining characteristic. Scalability is a broader concept applicable to many IT systems, not exclusive to Big Data. ·         Option B: Blockchain ensures data integrity through distributed ledgers, but it is not directly related to Big Data's primary characteristics. Blockchain focuses more on security and immutability than the "3Vs." ·         Option C: Big Data often includes unstructured and semi-structured data, making "structured data only" an incorrect attribute. ·         Option E: While Big Data technologies enable machine learning, this is an application rather than a defining characteristic of Big Data itself.

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