Scheduled data refresh in Power BI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set the refresh frequency to daily in Power BI service.

Power BI

Refresh settings frequency = "[1]"

Drag options to blanks, or click blank then click option'

Ahourly

Bweekly

Cmonthly

Ddaily

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing 'weekly' when daily updates are needed.

Using 'hourly' which may not be supported in all Power BI plans.

Setting the refresh frequency to "daily" ensures your dataset updates every day automatically.

2fill in blank

medium

Complete the code to specify the time zone for scheduled refresh to UTC.

Power BI

Time zone setting = "[1]"

Drag options to blanks, or click blank then click option'

APST

BUTC

CEST

DCET

Attempts:

3 left

💡 Hint

Common Mistakes

Selecting a local time zone instead of UTC.

Confusing EST with UTC.

UTC is the Coordinated Universal Time, commonly used for scheduling to avoid confusion across time zones.

3fill in blank

hard

Fix the error in the refresh schedule expression to enable refresh only on weekdays.

Power BI

Refresh days = [1]

Drag options to blanks, or click blank then click option'

A["Monday", "Tuesday", "Wednesday", "Thursday", "Friday"]

B["Saturday", "Sunday"]

C["Monday", "Sunday"]

D["Friday", "Saturday"]

Attempts:

3 left

💡 Hint

Common Mistakes

Including weekend days in the refresh schedule.

Selecting only one weekday.

Weekdays are Monday through Friday, so the refresh should be scheduled on these days only.

4fill in blank

hard

Fill both blanks to configure the refresh start time and frequency correctly.

Power BI

Refresh configuration = {"start_time": "[1]", "frequency": "[2]"}

Drag options to blanks, or click blank then click option'

A02:00

Bdaily

Cweekly

D15:00

Attempts:

3 left

💡 Hint

Common Mistakes

Setting start time in the afternoon when early morning is preferred.

Choosing weekly frequency when daily is needed.

The refresh starts at 2 AM and runs daily to keep data updated every day.

5fill in blank

hard

Fill all three blanks to create a refresh policy with start time, frequency, and retry count.

Power BI

Refresh policy = {"start_time": "[1]", "frequency": "[2]", "retry_count": [3]

Drag options to blanks, or click blank then click option'

A03:30

Bdaily

C3

Dweekly

Attempts:

3 left

💡 Hint

Common Mistakes

Using weekly frequency when daily is required.

Setting retry count too high or zero.

The policy sets refresh at 3:30 AM daily with 3 retry attempts if refresh fails.

Practice

1. What is the main purpose of scheduled data refresh in Power BI?

easy

A. To create new reports from scratch

B. To manually refresh data only when the user clicks refresh

C. To automatically update reports with the latest data at set times

D. To delete old data from the dataset

Solution

1. Step 1: Understand scheduled refresh concept

   Scheduled data refresh means Power BI updates data automatically without manual action.

2. Step 2: Identify the purpose in Power BI context

   This automatic update keeps reports current by refreshing data at set times.

3. Final Answer:

   To automatically update reports with the latest data at set times -> Option C

4. Quick Check:

   Scheduled refresh = automatic update [OK]

Hint: Scheduled refresh means automatic updates, not manual [OK]

Common Mistakes:

• Confusing scheduled refresh with manual refresh
• Thinking it creates new reports
• Assuming it deletes data

2. Which of the following is the correct place to set the scheduled refresh frequency in Power BI?

easy

A. In Power BI Service under Dataset settings

B. In Power BI Desktop under File > Options

C. In the data source system outside Power BI

D. In the Power BI mobile app settings

Solution

1. Step 1: Identify where refresh settings are configured

   Scheduled refresh frequency is set in Power BI Service, not Desktop or mobile app.

2. Step 2: Locate the exact setting

   It is found under Dataset settings in Power BI Service where you configure refresh times.

3. Final Answer:

   In Power BI Service under Dataset settings -> Option A

4. Quick Check:

   Refresh frequency set in Service Dataset settings [OK]

Hint: Set refresh schedule in Power BI Service, not Desktop [OK]

Common Mistakes:

• Trying to set refresh in Power BI Desktop
• Looking in mobile app settings
• Assuming data source controls refresh schedule

3. Consider this scenario: You set a scheduled refresh for your dataset at 2 AM daily. The data source requires a gateway. What will happen if the gateway is offline at 2 AM?

medium

A. The refresh will succeed using cached data

B. The refresh will run but only partially update data

C. Power BI will automatically switch to a backup gateway

D. The refresh will fail and the dataset will not update

Solution

1. Step 1: Understand gateway role in scheduled refresh

   Gateway connects Power BI Service to on-premises data sources for refresh.

2. Step 2: Analyze effect of gateway being offline

   If gateway is offline, Power BI cannot access data source, so refresh fails and no update occurs.

3. Final Answer:

   The refresh will fail and the dataset will not update -> Option D

4. Quick Check:

   Offline gateway causes refresh failure [OK]

Hint: Gateway offline means refresh fails, no update [OK]

Common Mistakes:

• Assuming refresh uses cached data when gateway is offline
• Thinking Power BI auto-switches gateways
• Believing partial data updates happen

4. You configured scheduled refresh but it never runs. Which of the following is the most likely cause?

medium

A. The dataset credentials are invalid or expired

B. The report visuals are not published

C. The Power BI Desktop file is open on your computer

D. The refresh frequency is set to every 5 minutes

Solution

1. Step 1: Check prerequisites for scheduled refresh

   Valid credentials are required for Power BI Service to access data source during refresh.

2. Step 2: Identify why refresh might not run

   If credentials are invalid or expired, refresh cannot authenticate and will not run.

3. Final Answer:

   The dataset credentials are invalid or expired -> Option A

4. Quick Check:

   Invalid credentials block refresh [OK]

Hint: Always verify dataset credentials for refresh to work [OK]

Common Mistakes:

• Thinking open Desktop file blocks refresh
• Assuming report visuals affect refresh
• Believing refresh frequency too fast causes failure

5. You want to schedule a data refresh for a dataset connected to multiple data sources, some on-premises and some cloud-based. What is the best approach to ensure all data refreshes successfully?

hard

A. Only schedule refresh for cloud sources and refresh on-premises data manually

B. Use a gateway for on-premises sources and configure credentials for cloud sources in Power BI Service

C. Install multiple gateways, one for each data source type, and schedule refresh separately

D. Combine all data sources into one cloud source to avoid using gateways

Solution

1. Step 1: Understand gateway use for on-premises data

   On-premises data requires a gateway to connect Power BI Service to local data sources.

2. Step 2: Configure cloud data sources separately

   Cloud data sources do not need a gateway but require proper credentials set in Power BI Service.

3. Step 3: Combine both configurations for full refresh

   Using a gateway for on-premises and credentials for cloud sources ensures all data refreshes automatically.

4. Final Answer:

   Use a gateway for on-premises sources and configure credentials for cloud sources in Power BI Service -> Option B

5. Quick Check:

   Gateway + credentials = full scheduled refresh [OK]

Hint: Gateway for on-premises, credentials for cloud sources [OK]

Common Mistakes:

• Ignoring gateway for on-premises data
• Trying to refresh all sources manually
• Assuming one gateway covers cloud sources