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| Section | Weight | Objectives |
|---|---|---|
| Prepare and process data | 30-35% | - Ingest and transform data
|
| Set up and configure an Azure Databricks environment | 15-20% | - Create and configure Azure Databricks workspaces
|
| Secure and govern Unity Catalog objects | 15-20% | - Implement governance and security
|
| Deploy and maintain data pipelines and workloads | 30-35% | - Manage production workloads
|
PassTestのDP-750 問題集はあなたがDP-750認定試験に準備するときに最も欠かせない資料です。この問題集の価値は試験に関連する他の参考書の総合の価値に相当します。このアサーションは過言ではありません。PassTestの問題集を利用してからこのすべてが真であることがわかります。
質問 # 15
You have an Azure Databricks workspace that is enabled for Unity Catalog and contains a catalog named finance, finance contains two schemas named default and procurement.
You need to create a table named assets in the procurement schema, assets must contain the following columns:
* asset.id
* asset, type
* asset_name
How should you complete the SQL statement? To answer, drag the appropriate values to the correct targets.
Each value may be used once, more than once, or not at all You may need to drag the split bar between panes or scroll to view content NOTE: Each correct selection is worth one point.
正解：
解説：
Explanation:
The correct SQL statement uses the full three-part namespace finance.procurement.assets with the three specified columns.
In Unity Catalog, every object lives in a three-tier hierarchy: catalog # schema # table. Using the full path finance.procurement.assets guarantees the table lands in the right schema regardless of the session's current catalog or schema context. Omitting the catalog or schema name relies on the session default, which may not be finance.procurement - a silent mistake that's hard to catch.
The column names asset_id, asset_type, and asset_name must match the spec exactly. Unity Catalog applies access controls, lineage tracking, and tagging at the column level, so the names are meaningful beyond just the schema. Once created, any GRANT statements can target specific columns for fine-grained access control.
Reference: https://learn.microsoft.com/en-us/azure/databricks/sql/language-manual/sql-ref-syntax-ddl-create- table-using
質問 # 16
You have an Azure Databricks workspace that is enabled for Unity Catalog and contains a managed Delta table named Table1.
Table1 stores customer profile data.
Business users must analyze how customer profile records change over time. They must also be able to query earlier versions of the table.
You need to implement a solution that:
Maintains persistent historical versions of customer profile records for long-term analysis.
Allows users to query earlier versions of the Delta table.
Minimizes maintenance effort.
What should you do? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
正解：
解説：
Explanation:
To record historical changes: Implement a Type 2 slowly changing dimension (SCD).
To support temporal analysis: Use Delta Lake time travel.
A Type 2 slowly changing dimension preserves customer-profile history by inserting a new record whenever a tracked attribute changes instead of overwriting the existing record. Effective dates, expiration dates, version values, or current-record indicators can identify which version applied during a particular period. This provides persistent business history for long-term analysis. Delta Lake time travel supports temporal analysis of the physical table by allowing users to query an earlier version with VERSION AS OF or TIMESTAMP AS OF. Time travel is useful for auditing and reproducing previous results, but its availability depends on retained Delta log entries and data files. Therefore, it should not replace a Type 2 SCD for permanent customer history. Together, the two features satisfy the historical-record and earlier-version requirements.
質問 # 17
You have an Azure Databricks workspace.
You are creating a Lakeflow Spark Declarative Pipelines (SDP) pipeline that scales automatically.
You need to configure compute for the pipeline. The solution must minimize operational costs and effort.
What should you use?
正解：C
解説：
The best option for a Lakeflow Spark Declarative Pipelines (SDP) pipeline that scales automatically while keeping costs and administrative effort low is a job cluster that uses autoscaling.
Lowest Costs: Job clusters (also called automated compute) are billed at a significantly lower Data Processing Unit (DBU) rate compared to all-purpose clusters. By enabling autoscaling, Databricks dynamically allocates or removes worker nodes based on real-time pipeline demand, ensuring you never pay for unutilized resources.
Low Administrative Effort: While Databricks generally recommends Serverless compute as the absolute ideal for zero-admin pipelines, when selecting from classic compute options, a job cluster automatically handles its own lifecycle. It deploys when the pipeline starts executing and terminates automatically when processing is finished.
Incorrect:
[Not A]
Databricks SQL warehouses are designed to run standalone materialized views and streaming tables via standard SQL. They are not the native compute vehicle for running a fully automated, dedicated Lakeflow Spark Declarative Pipelines (SDP) deployment framework.
[Not B]
All-purpose compute is meant for interactive development, debugging, and ad-hoc analysis. It is billed at a much higher DBU rate, which violates the requirement to keep costs low.
[Not D]
Aside from the higher billing rate of all-purpose compute, a single-node configuration does not scale horizontally. This directly conflicts with your requirement to build a pipeline that scales automatically.
Reference:
https://docs.databricks.com/gcp/en/ldp/auto-scaling
質問 # 18
A data engineer notices slow query performance on a large Delta table in Azure Databricks. The table has frequent updates and deletes. Which action best improves query performance?
正解：C
解説：
OPTIMIZE compacts small files into larger ones, reducing file scan overhead. ZORDER improves data skipping by co-locating related column values. This combination significantly improves query performance on frequently filtered columns. Increasing cluster size does not address file fragmentation. Converting to Parquet removes Delta benefits like ACID transactions.
質問 # 19
You have a Lakeflow Spark Declarative Pipelines (SDP) pipeline in Azure Databricks. The pipeline ingests transaction data into a table named Table1.
You need to ensure that in the event of an invalid record, the pipeline continues to run. The solution must meet the following requirements:
- Invalid records must NOT be written to Table1.
- Invalid records must be preserved for review.
- Minimize development effort.
What should you do?
正解：C
解説：
To meet your pipeline requirements, use the expect_or_drop expectation constraint to ensure invalid records are not written to the table while allowing the pipeline to continue running. To preserve and review invalid records without custom development, capture the failed rows by isolating the inverse rule (expect_or_drop) in a quarantine flow.
Summary of the Behavior Matrix
Pipeline continues to run: Achieved via drop or warn behaviors (the fail policy is excluded because it halts execution).
Invalid records not written to the clean table: Achieved via the drop policy, which discards records from the downstream dataset.
Records preserved for review: Achieved by querying the automated, built-in Lakeflow Event Log Delta table, which automatically captures the details of any rejected or flagged rows without requiring custom code.
Minimized development: Eliminates the need to construct secondary "quarantine" storage tables manually.
Reference:
https://docs.databricks.com/aws/en/ldp/best-practices
質問 # 20
......
現在の仕事にまだ満足していますか？あなたはまだあなたの仕事にうまく対処する能力を持っていますか？同じ分野で働いている人々と比較したときに、競争上の優位性があるかどうかを考えますか？あなたの答えがいいえなら、あなたは今正しい場所です。私たちのDP-750試験トレントはあなたの良いパートナーであり、あなたは満足していない仕事を変更する機会があり、私たちのDP-750ガイド質問であなたの能力を高めることができるので、あなたはDP-750試験に合格します目標を達成します。 DP-750試験問題のデモを無料でダウンロードしてください！
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