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Introduction to Data Modelling in Power BI

Quiz by Nitin Gholap

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10 questions
Show answers
  • Q1
    What is the process of creating relationships between different data sources in Power BI called?
    Data Modeling
    Data Consolidation
    Data Integration
    Data Merging
    30s
  • Q2
    According to the video, what is the advantage of data modeling in Power BI over using VLOOKUP in Excel?
    It allows creating relationships between different data sources without writing formulas.
    It is easier to remember the functions involved.
    It works faster for small datasets.
    It can handle data from more than two sources.
    30s
  • Q3
    In the video, what was the name of the add-in that already existed in Excel for over 12 years before Power BI was introduced?
    Power Query
    Power BI Desktop
    Power Pivot
    Data Modeler
    30s
  • Q4
    Which of the following statements about creating relationships in Power BI is FALSE according to the video?
    Power BI treats all data sources as queries regardless of their original format.
    Relationships are automatically created between tables with identically named columns.
    Data modeling can be used to connect data sources from different file formats like Excel, CSV, etc.
    You can manually create relationships between tables with different column names.
    30s
  • Q5
    In the video, what was the common column used to create a relationship between the Products and Sales tables?
    Product Key
    Order ID
    Customer Name
    Region
    30s
  • Q6
    How does data modeling in Power BI help to answer questions about data from multiple sources?
    By creating connections between tables based on common columns, allowing you to analyze data from different tables together.
    It stores all the data in a single table.
    It requires writing complex SQL queries.
    It converts all data sources to the same format.
    30s
  • Q7
    According to the speaker in the video, why is data modeling considered easier than using VLOOKUP in Excel?
    Data modeling is a built-in feature of Excel, while VLOOKUP is an add-in.
    Data modeling uses a visual interface to create relationships, eliminating the need for formulas and functions.
    VLOOKUP can only handle small datasets.
    Data modeling requires less computer processing power.
    30s
  • Q8
    Which of the following is NOT a benefit of data modeling mentioned in the video?
    It simplifies data exploration and visualization in Power BI reports.
    It automatically cleans and prepares the data for analysis.
    It allows you to create complex calculations using DAX functions.
    It enables combining data from various sources into a cohesive model.
    30s
  • Q9
    In the video, the speaker mentions that data modeling can be done in both Excel and Power BI. Which statement is TRUE about using data modeling in these two applications?
    Data modeling is a more powerful feature in Excel compared to Power BI.
    The core functionality of data modeling (Power Pivot) is the same in both Excel and Power BI, but Power BI offers a more user-friendly interface.
    Power Pivot is an exclusive add-in for Power BI and is not available in Excel.
    Data modeling requires different steps and techniques depending on whether you use Excel or Power BI.
    30s
  • Q10
    Based on the video, what is the main reason why some people might find data modeling confusing at first?
    The name "data modeling" sounds complex and technical.
    It requires a strong understanding of advanced mathematics.
    Data analysts need to learn a new query language.
    30s

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