PowerBI Certification Exam Questions
& Answers (Grade A+)
If you want your data to automatically refresh as you interact with
visualizations, which option should you choose?
A) Import
B) DirectQuery -
correct answer ✅B) DirectQuery
Explanation: When you use DirectQuery, no data is imported into
Power BI Desktop. As you create or interact with a visualization,
PowerBI Desktop queries the underlying data source, i.e. you're
always viewing current data.
How do you connect to Excel files that contain target figures? The
solution should involve minimum manual work when new Excel
files are created.
A) Connect to the files with Folder connector and use the Combine
Binaries functionality.
B) Connect to a new file each month, perform transformations, and
use Append function in Power Query Editor to combine all targets
in the same table. -
,PowerBI Certification Exam Questions
& Answers (Grade A+)
correct answer ✅A) Connect to the files with Folder connector and
use the Combine Binaries functionality.
Explanation: Connecting to files separately will take time if there
are lots of files in the folder. Its always better to connect to folder if
files have same structure. If you copy new files in that folder with
same structure, that file will be loaded automatically without doing
any change to data sources.
Imagine that you have created a query named "Customers" in a
PowerBI Desktop to append the rowss from three external tables
with customer data into a single output table named "Customers".
What would be the best approach to add a new fabricated ID
column to the Customers table to ensure that every row in the
"Customers" table contains a unique ID value?
A) Modify the Customer query by adding a counter column.
B) Modify the data model by extending the Customers table with a
Counter column.
,PowerBI Certification Exam Questions
& Answers (Grade A+)
C) Modify the customers query by adding an index column.
D) Modify the data model by extending the Customers table with
an index column. -
correct answer ✅C) Modify the Customers query by adding an
index column.
Explanation: Index column option is available in query editor to add
indexed column starting from 0, 1, or custom number.
Which two of the following strategies are recommended when
designing the queries to import data from an OLTP-style database
into a Power BI Desktop project?
A) Normalizing the data model to make it better suited for data
analysis and reporting.
B) Denormalizing the data model to make it better suited for data
analysis and reporting.
, PowerBI Certification Exam Questions
& Answers (Grade A+)
C) Refactoring the imported tables into a multidimensional cube.
D) Refactoring the imported tables into a star schema. -
correct answer ✅B) Denormalizing the data model to make it
better suited for data analysis and reporting.
D) Refactoring the imported tables into a star schema.
Explanation: Denormalization and star schema is desired to
transform the data in the format that is best fit for visualizations.
Which of the following statements are true with respect to
designing a Power BI Desktop project in DirectQuery mode?
A) All queries within the project must be from a single source
database.
B) No support for parent-child DAX functions.
C) You cannot convert column data types when editing a query.
& Answers (Grade A+)
If you want your data to automatically refresh as you interact with
visualizations, which option should you choose?
A) Import
B) DirectQuery -
correct answer ✅B) DirectQuery
Explanation: When you use DirectQuery, no data is imported into
Power BI Desktop. As you create or interact with a visualization,
PowerBI Desktop queries the underlying data source, i.e. you're
always viewing current data.
How do you connect to Excel files that contain target figures? The
solution should involve minimum manual work when new Excel
files are created.
A) Connect to the files with Folder connector and use the Combine
Binaries functionality.
B) Connect to a new file each month, perform transformations, and
use Append function in Power Query Editor to combine all targets
in the same table. -
,PowerBI Certification Exam Questions
& Answers (Grade A+)
correct answer ✅A) Connect to the files with Folder connector and
use the Combine Binaries functionality.
Explanation: Connecting to files separately will take time if there
are lots of files in the folder. Its always better to connect to folder if
files have same structure. If you copy new files in that folder with
same structure, that file will be loaded automatically without doing
any change to data sources.
Imagine that you have created a query named "Customers" in a
PowerBI Desktop to append the rowss from three external tables
with customer data into a single output table named "Customers".
What would be the best approach to add a new fabricated ID
column to the Customers table to ensure that every row in the
"Customers" table contains a unique ID value?
A) Modify the Customer query by adding a counter column.
B) Modify the data model by extending the Customers table with a
Counter column.
,PowerBI Certification Exam Questions
& Answers (Grade A+)
C) Modify the customers query by adding an index column.
D) Modify the data model by extending the Customers table with
an index column. -
correct answer ✅C) Modify the Customers query by adding an
index column.
Explanation: Index column option is available in query editor to add
indexed column starting from 0, 1, or custom number.
Which two of the following strategies are recommended when
designing the queries to import data from an OLTP-style database
into a Power BI Desktop project?
A) Normalizing the data model to make it better suited for data
analysis and reporting.
B) Denormalizing the data model to make it better suited for data
analysis and reporting.
, PowerBI Certification Exam Questions
& Answers (Grade A+)
C) Refactoring the imported tables into a multidimensional cube.
D) Refactoring the imported tables into a star schema. -
correct answer ✅B) Denormalizing the data model to make it
better suited for data analysis and reporting.
D) Refactoring the imported tables into a star schema.
Explanation: Denormalization and star schema is desired to
transform the data in the format that is best fit for visualizations.
Which of the following statements are true with respect to
designing a Power BI Desktop project in DirectQuery mode?
A) All queries within the project must be from a single source
database.
B) No support for parent-child DAX functions.
C) You cannot convert column data types when editing a query.
