MCQs on Performance Optimization and Governance | Power BI
Effective performance optimization and governance are crucial for maintaining high-quality Power BI reports. These 30 MCQs cover optimizing report performance, monitoring usage metrics, and ensuring governance and compliance in Power BI.
1. Optimizing Report Performance
- Which of the following is an important consideration when optimizing Power BI report performance?
- a) Reducing the number of visuals in a report
- b) Increasing the size of data models
- c) Adding more filters to reports
- d) Using complex DAX calculations
- Which of these strategies helps improve report performance by reducing the amount of data loaded into Power BI?
- a) Using DirectQuery mode
- b) Importing large datasets
- c) Using custom visuals
- d) Enabling auto-refresh
- What is the best practice to improve Power BI report performance when working with large datasets?
- a) Avoiding the use of slicers
- b) Using summary tables or aggregations
- c) Increasing the number of visuals
- d) Reducing the data source to a single table
- Which DAX function can improve performance by allowing better control over calculated columns and measures?
- a) CALCULATE()
- b) SUMX()
- c) FILTER()
- d) COUNTROWS()
- When should you consider using Incremental Refresh in Power BI?
- a) When you need real-time data updates
- b) When dealing with large datasets that don’t change frequently
- c) When working with small datasets
- d) When you need to refresh data daily
- What is a common reason for slow Power BI reports when using DirectQuery mode?
- a) Large datasets
- b) Use of complex visuals
- c) Excessive network latency or poor server performance
- d) Use of custom themes
- Which of the following is an efficient approach to optimize Power BI report loading times?
- a) Reducing the size of visuals
- b) Limiting data retrieval to only necessary fields
- c) Enabling all auto-filters
- d) Increasing data refresh rates
- How can you monitor and improve query performance in Power BI?
- a) Use Query Diagnostics tool to analyze query performance
- b) Disable all filters on the report
- c) Reduce the number of pages in the report
- d) Increase the number of visuals in the report
- Which type of Power BI model should be used to achieve the best performance when working with large volumes of data?
- a) Import mode
- b) DirectQuery mode
- c) Live connection mode
- d) Composite model
- Which Power BI feature is essential for managing data model size and optimizing performance?
- a) Power Query Editor
- b) Data Compression
- c) Row-Level Security
- d) Power BI Service
2. Monitoring Usage Metrics
- What is the primary purpose of Power BI Usage Metrics reports?
- a) To analyze data model performance
- b) To track user interactions with reports and dashboards
- c) To optimize DAX functions
- d) To visualize query execution plans
- Which Power BI feature allows you to track user activity, such as views and interactions with your reports?
- a) Data Refresh History
- b) Usage Metrics
- c) Query Diagnostics
- d) Report View Logs
- In Power BI, how can you view the performance of reports and dashboards in terms of user interactions?
- a) By using the Performance Analyzer tool
- b) By enabling Usage Metrics
- c) By analyzing query logs
- d) By checking the dataset refresh history
- Which of the following metrics is most useful when monitoring report usage in Power BI?
- a) Data refresh times
- b) The number of views per report
- c) The number of visuals on a report
- d) DAX query execution time
- How do you access usage metrics for Power BI reports and dashboards?
- a) By opening the report in Power BI Desktop
- b) By selecting “Usage Metrics” from the report settings menu in Power BI Service
- c) By viewing the query execution plan
- d) By exporting the report to Excel
- Which of these tools provides insights into how long a user spends interacting with a specific report or dashboard in Power BI?
- a) Power BI Usage Metrics
- b) Power BI Query Diagnostics
- c) Power BI Admin Portal
- d) Power BI Performance Analyzer
- What kind of data is typically included in Power BI Usage Metrics reports?
- a) The performance of individual DAX measures
- b) The names of the users who accessed reports
- c) The number of queries executed in Power Query
- d) The server load during report access
- In Power BI, which of the following actions can be monitored using Usage Metrics?
- a) Data model updates
- b) Report and dashboard views
- c) Query execution times
- d) Data source changes
- Which of the following metrics would help identify which reports are most frequently used?
- a) The average load time for the report
- b) The number of unique viewers
- c) The total dataset size
- d) The number of pages in a report
- Which Power BI feature allows you to track the performance of a report and identify areas for optimization?
- a) Performance Analyzer
- b) Query Diagnostics
- c) Usage Metrics
- d) Data Refresh History
3. Governance and Compliance in Power BI
- What is the primary role of governance in Power BI?
- a) To provide interactive visualizations
- b) To ensure data security, compliance, and appropriate access management
- c) To manage report layout and formatting
- d) To create user-specific data models
- Which of the following features of Power BI helps maintain governance by controlling who can publish reports and access data?
- a) Row-Level Security (RLS)
- b) Workspaces and roles
- c) Usage Metrics
- d) DirectQuery mode
- Which Power BI feature is used to ensure compliance with data privacy regulations, such as GDPR?
- a) Data Loss Prevention (DLP) policies
- b) Usage Metrics
- c) Data Gateway
- d) Row-Level Security (RLS)
- In Power BI, who is typically responsible for managing the governance and compliance aspects of the platform?
- a) Report creators
- b) Power BI Admins
- c) Power BI Pro users
- d) Data analysts
- Which of the following is a key feature of Power BI governance that helps prevent unauthorized sharing of data?
- a) Data Refresh History
- b) Data Loss Prevention (DLP) policies
- c) Query Diagnostics
- d) DirectQuery mode
- In Power BI, how can admins ensure that users comply with internal data governance policies?
- a) By enforcing Data Loss Prevention (DLP) policies
- b) By enabling Row-Level Security
- c) By limiting access to specific visuals
- d) By controlling workspace permissions
- What is the role of Power BI’s audit logs in governance and compliance?
- a) To track usage metrics for report performance
- b) To log user activities, such as viewing and sharing reports, for compliance purposes
- c) To analyze query performance
- d) To manage data model permissions
- Which Power BI feature provides the ability to protect sensitive data in reports through encryption?
- a) Power BI Security Groups
- b) Data Encryption
- c) Row-Level Security (RLS)
- d) Power BI Apps
- In the context of Power BI governance, what is the primary purpose of workspace roles?
- a) To assign user access to reports based on data needs
- b) To categorize reports by importance
- c) To enable data refresh schedules
- d) To manage data sources
- Which feature allows you to monitor who is sharing Power BI reports and dashboards externally, ensuring compliance with corporate security policies?
- a) Power BI Activity Log
- b) Usage Metrics
- c) Query Diagnostics
- d) Data Loss Prevention (DLP) policies
Answer Key
| Qno | Answer (Option with text) |
|---|---|
| 1 | a) Reducing the number of visuals in a report |
| 2 | a) Using DirectQuery mode |
| 3 | b) Using summary tables or aggregations |
| 4 | a) CALCULATE() |
| 5 | b) When dealing with large datasets that don’t change frequently |
| 6 | c) Excessive network latency or poor server performance |
| 7 | b) Limiting data retrieval to only necessary fields |
| 8 | a) Use Query Diagnostics tool to analyze query performance |
| 9 | a) Import mode |
| 10 | b) Data Compression |
| 11 | b) To track user interactions with reports and dashboards |
| 12 | b) Usage Metrics |
| 13 | b) By enabling Usage Metrics |
| 14 | b) The number of views per report |
| 15 | b) By selecting “Usage Metrics” from the report settings menu in Power BI Service |
| 16 | a) Power BI Usage Metrics |
| 17 | b) The names of the users who accessed reports |
| 18 | b) Report and dashboard views |
| 19 | b) The number of unique viewers |
| 20 | a) Performance Analyzer |
| 21 | b) To ensure data security, compliance, and appropriate access management |
| 22 | b) Workspaces and roles |
| 23 | a) Data Loss Prevention (DLP) policies |
| 24 | b) Power BI Admins |
| 25 | b) Data Loss Prevention (DLP) policies |
| 26 | a) By enforcing Data Loss Prevention (DLP) policies |
| 27 | b) To log user activities, such as viewing and sharing reports, for compliance purposes |
| 28 | b) Data Encryption |
| 29 | a) To assign user access to reports based on data needs |
| 30 | a) Power BI Activity Log |