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Introduction to Data Analytics

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  1. ١

    Big data is best defined as datasets that:

  2. ٢

    Which sequence orders the concepts correctly?

  3. ٣

    Which source of big data is typically HIGHLY STRUCTURED?

  4. ٤

    Which 'V' refers to the SPEED at which data arrives?

  5. ٥

    Which 'V' refers to the QUALITY and trustworthiness of data?

  6. ٦

    In a dataset, the number of attributes is called the:

  7. ٧

    A categorical attribute that has an order but no measurable distance (e.g., good/fair/bad) is:

  8. ٨

    In document data, each document is represented as a:

  9. ٩

    Grouping similar objects without predefined labels is which task?

  10. ١٠

    Good clustering minimizes ___ distances and maximizes ___ distances:

  11. ١١

    The definition of big data varies by sector and industry.

  12. ١٢

    Information is simply raw, unorganized data.

  13. ١٣

    Machine-generated data (sensors, IoT) is generally unstructured.

  14. ١٤

    The classic '3 V's' are Volume, Velocity, and Variety.

  15. ١٥

    Variety refers to the different formats and models of data.

  16. ١٦

    An attribute is also known as a record or instance.

  17. ١٧

    Nominal attributes have no inherent order.

  18. ١٨

    Transaction data represents each record as a set of items.

  19. ١٩

    Classification is an unsupervised task with no labels.

  20. ٢٠

    Cost reduction was one of the top three areas of value from big data analytics.

  21. ٢١

    Match each concept.

    • Data
    • Information
    • Data analytics
    • Big data

    الإجابات

  22. ٢٢

    Match each 'V' with its meaning.

    • Volume
    • Velocity
    • Variety
    • Veracity

    الإجابات

  23. ٢٣

    Match each data source with its structure.

    • Machine-generated
    • People-generated
    • Organization-generated
    • Term vector

    الإجابات

  24. ٢٤

    Match each attribute type.

    • Nominal
    • Ordinal
    • Discrete
    • Continuous

    الإجابات

  25. ٢٥

    Match each analytics task.

    • Classification
    • Clustering
    • Association rules
    • Outlier detection

    الإجابات

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