PL-300絶対合格の教科書+出る順問題集

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Microsoft PL-300 Exam Syllabus Topics:

SectionWeightObjectives
Prepare the data15-20%- Clean, transform, and load data
  • 1. Shape and transform data
    • 2. Clean data using Power Query
      - Get data from data sources
      • 1. Identify and connect to data sources
        • 2. Select storage modes
          Visualize and analyze data25-35%- Create reports and dashboards
          • 1. Design report layouts
            • 2. Create visuals and KPIs
              - Enhance reports for usability
              • 1. Implement drill-through and navigation
                • 2. Apply filters and slicers
                  Deploy and maintain assets15-20%- Manage workspaces and datasets
                  • 1. Configure refresh schedules
                    • 2. Publish and manage datasets
                      - Secure and monitor Power BI
                      • 1. Monitor usage and performance
                        • 2. Implement row-level security
                          Model the data30-40%- Design a data model
                          • 1. Define relationships and cardinality
                            • 2. Design star schema
                              - Develop a data model
                              • 1. Optimize model performance
                                • 2. Create DAX calculations

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                                  Microsoft Power BI Data Analyst 認定 PL-300 試験問題 (Q292-Q297):

                                  質問 # 292
                                  You create a Power Bl report1 named Summary1 You discover that Summary1 is slow.
                                  You run Performance analyzer to identify performance metrics for Summary1 Which two metrics display the execution duration in Performance analyzer* Each correct answer present part of the solution. NOTE: Each correct answer is worth one point.

                                  正解：A、D


                                  質問 # 293
                                  You need to create a solution to meet the notification requirements of the warehouse shipping department.
                                  What should you do? To answer, select the appropriate options in the answer area.
                                  NOTE: Each correct select is worth one point:

                                  正解：

                                  解説：

                                  Explanation


                                  質問 # 294
                                  You create a data model in Power BI.
                                  Report developers and users provide feedback that the data model is too complex.
                                  The model contains the following tables.

                                  The model has the following relationships:
                                  *There is a one-to-one relationship between Sales_Region and Region_Manager.
                                  *There are more records in Manager than in Region_Manager, but every record in Region_Manager has a corresponding record in Manager.
                                  *There are more records in Sales_Manager than in Sales_Region, but every record in Sales_Region has a corresponding record in Sales_Manager.
                                  You need to denormalize the model into a single table. Only managers who are associated to a sales region must be included in the reports.
                                  Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.
                                  NOTE: More than one order of answer choices is correct. You will receive credit for any of the correct orders you select.

                                  正解：

                                  解説：

                                  Explanation
                                  1.Merge [Region_Manager] and [Manager] by using an inner join.
                                  3.Merge [Sales_Region] and [Sales_Manager] by using an inner join.
                                  6.Merge [Sales_Region] and [Region_Manager] by using an inner join.


                                  質問 # 295
                                  You are creating an analytics report that will consume data from the tables shown in the following table.

                                  There is a relationship between the tables.
                                  There are no reporting requirements on employeejd and employee_photo.
                                  You need to optimize the data model
                                  What should you configure for employeejd and employee.photo? To answer, select the appropriate options in the answer area.

                                  正解：

                                  解説：

                                  Explanation:

                                  Box 1: Hide
                                  Optimize data by hiding fields and sorting visualization data
                                  Box 2: Delete
                                  The fastest way to optimize your Power BI report is to limit the number of columns to only the ones you need in your data model. Go through your tables in Power Query and determine what fields are being used. Delete these columns if they are not being used in any of your reports or calculations.
                                  Reference:
                                  https://tessellationtech.io/optimizing-power-bi-reports/


                                  質問 # 296
                                  You have a report in Power BI Desktop as shown in the following exhibit.

                                  Use the drop-down menus to select the answer choice that completes each statement based on the information presented in the graphic.
                                  Note: Each correct selection is worth one point.

                                  正解：

                                  解説：

                                  Explanation:


                                  質問 # 297
                                  ......

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