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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Prepare and process data | 30-35% | - Ingest and transform data
|
| Topic 2: Set up and configure an Azure Databricks environment | 15-20% | - Create and configure Azure Databricks workspaces
|
| Topic 3: Deploy and maintain data pipelines and workloads | 30-35% | - Manage production workloads
|
| Topic 4: Secure and govern Unity Catalog objects | 15-20% | - Implement governance and security
|
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NEW QUESTION # 60
You have an Azure Databricks workspace that uses Databricks SQL.
You have a table named sales_goals_source that contains the following columns:
* Salesperson
* Item
* 2019
* 2020
* 2021
You need to transform the year columns into rows and return the columns Salesperson, Item, Year, and Value.
How should you complete the SQL statement? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
SELECT Salesperson, Item, Year, Value
FROM sales_goals_source
UNPIVOT
(
Value FOR [first dropdown] IN [second dropdown]
);
Answer:
Explanation:
Explanation:
First dropdown: Year
Second dropdown: (2019, 2020, 2021)
The UNPIVOT operator converts the separate 2019, 2020, and 2021 columns into rows. Value becomes the output column containing the values previously stored in those year columns. Year becomes the output name column that identifies the original column from which each value came. Therefore, the expression must use Value FOR Year IN (2019, 2020, 2021). The Salesperson and Item columns are not included in the IN list because they remain identifier columns and are repeated for every resulting year row. A single source row consequently produces three output rows-one for each listed year. Selecting (Year) would reference an output name rather than the source columns that must be rotated.
NEW QUESTION # 61
You have an Azure Databricks workspace that is enabled for Unity Catalog and contains a managed Delta table named Table1. Table1 stores customer data.
You need to implement a data retention solution that meets the following requirements:
Deleted data must be retained for 30 days to support audits.
Deleted data that is older than 30 days must be removed permanently.
The solution must minimize administrative effort.
Which two properties should you configure? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.
Answer: A,C
Explanation:
The correct answers are B and D. Delta Lake's data retention behaviour is controlled by two distinct properties that work together:
delta.deletedFileRetentionDuration governs how long physically deleted data files are kept before VACUUM can remove them. Setting this to 30 days ensures deleted records remain on storage for the full audit window.
delta.logRetentionDuration controls how long the transaction log is retained. Time-travel queries (SELECT ...
VERSION AS OF or TIMESTAMP AS OF) rely on the log to reconstruct historical table states - without 30 days of log, you can't query 30-day-old snapshots even if the data files are still there.
Both properties need to be set to 30 days to fully honour the requirement. Option A (delta.timeUntilArchived) doesn't exist in Delta Lake. Option C (autoCompact) manages file sizing, not retention. Option E (enableDeletionVectors) speeds up deletes but has no bearing on how long data is kept.
Reference: https://learn.microsoft.com/en-us/azure/databricks/delta/history#configure-data-retention
NEW QUESTION # 62
You have an Azure Databricks workspace that is enabled for Unity Catalog.
You have a CSV file stored in an Azure Data Lake Storage Gen2 container.
You plan to ingest the data into an existing table by running the following SQL statement:
COPY INTO Customer
FROM ' abfss://container1@storageaccount.dfs.core.windows.net/data/customer ' FILEFORMAT = CSV; You need to ensure that the statement can access the data in the container.
What should you configure?
Answer: C
Explanation:
A Unity Catalog external location associates a cloud-storage path with a storage credential. The storage credential contains the managed identity or service principal that Azure Databricks uses to authenticate to the ADLS Gen2 account. Configuring an external location for the specified abfss path therefore enables Unity Catalog to govern access to the source files while allowing COPY INTO to read them. The user or execution identity must also have the required READ FILES permission on the external location. Microsoft Learn An external table is unnecessary because Customer already exists as the destination table, and the CSV files are being used only as the ingestion source. A Unity Catalog volume could be used if the statement referenced a /Volumes/... path, but the displayed command directly references the ADLS container through an abfss URL. A Lakeflow ingestion gateway is not used to authorize access to ADLS files for COPY INTO.
Therefore, an external location backed by a storage credential is the correct configuration.
NEW QUESTION # 63
You have an Azure Databricks workspace that contains a job in Lakeflow Jobs named Job1. Job1 contains multiple tasks.
Failures of non-critical tasks must be logged but must NOT trigger notifications. Notifications must be triggered only when critical tasks have failed, and Job1 has completed You need to configure the job alerting behavior.
What should trigger a notification?
Answer: B
NEW QUESTION # 64
You have an Azure Databricks workspace that contains multiple all-purpose clusters. You discover that some clusters remain idle for long periods after users finish their work. You need to reduce compute costs without affecting active workloads. What should you do?
Answer: C
Explanation:
The correct answer is D - configure automatic termination.
The problem is specific: clusters sit idle after users finish working but nobody manually shuts them down.
Automatic termination solves this directly - once a cluster has been idle for the configured period (no running commands, no attached notebooks with active execution), it shuts itself down. You eliminate the idle cost without any manual intervention and without affecting any workload that is actually running.
Option A (convert to job clusters) would force users off interactive all-purpose clusters, disrupting their development workflow. Option B (spot instances) reduces the hourly rate while a cluster is running but does nothing about the idle-time problem - a cheaper idle cluster is still waste. Option C (enable autoscaling) reduces the number of workers during light load but keeps the cluster alive at the minimum node count. It saves some cost but doesn't fully eliminate idle spend the way auto-termination does.
Reference: https://learn.microsoft.com/en-us/azure/databricks/compute/configure#auto-termination
NEW QUESTION # 65
......
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