Databricks-Certified-Data-Engineer-Associate試験問題集を提供していますDatabricks問題
Databricks-Certified-Data-Engineer-Associate認定ガイドPDFはリアル試験問題で100%カバー率
Databricks-Certified-Data-Engineer-Associate試験は、Databricksプラットフォームを使用する能力を証明したい個人にとって優れた資格です。この試験は、成功するために重要な幅広いトピックをカバーしています。この試験に合格した候補者は、複雑なデータエンジニアリングの課題を処理するために必要な専門知識を持っているため、雇用主から高い評価を受けています。
GAQM Databricks-Certified-Data-Engineer-Associate（Databricks Certified Data Engineer Associate）認定試験は、DataBricks Unified Analyticsプラットフォームで働くデータエンジニアのスキルと知識を検証するように設計されています。この認定は、データビリックを使用したデータパイプライン、データ変換、データストレージの構築と最適化に関する専門知識を実証したい専門家に最適です。
質問 # 14
Which of the following benefits is provided by the array functions from Spark SQL?
- A. An ability to work with an array of tables for procedural automation
- B. An ability to work with data in a variety of types at once
- C. An ability to work with time-related data in specified intervals
- D. An ability to work with data within certain partitions and windows
- E. An ability to work with complex, nested data ingested from JSON files
正解：D
質問 # 15
Which of the following benefits of using the Databricks Lakehouse Platform is provided by Delta Lake?
- A. The ability to manipulate the same data using a variety of languages
- B. The ability to distribute complex data operations
- C. The ability to support batch and streaming workloads
- D. The ability to collaborate in real time on a single notebook
- E. The ability to set up alerts for query failures
正解：C
質問 # 16
A dataset has been defined using Delta Live Tables and includes an expectations clause:
CONSTRAINT valid_timestamp EXPECT (timestamp > '2020-01-01') ON VIOLATION DROP ROW What is the expected behavior when a batch of data containing data that violates these constraints is processed?
- A. Records that violate the expectation are added to the target dataset and flagged as invalid in a field added to the target dataset.
- B. Records that violate the expectation are dropped from the target dataset and recorded as invalid in the event log.
- C. Records that violate the expectation cause the job to fail.
- D. Records that violate the expectation are dropped from the target dataset and loaded into a quarantine table.
- E. Records that violate the expectation are added to the target dataset and recorded as invalid in the event log.
正解：E
質問 # 17
A data engineering team has two tables. The first table march_transactions is a collection of all retail transactions in the month of March. The second table april_transactions is a collection of all retail transactions in the month of April. There are no duplicate records between the tables.
Which of the following commands should be run to create a new table all_transactions that contains all records from march_transactions and april_transactions without duplicate records?
- A. CREATE TABLE all_transactions AS
SELECT * FROM march_transactions
UNION SELECT * FROM april_transactions; - B. CREATE TABLE all_transactions AS
SELECT * FROM march_transactions
MERGE SELECT * FROM april_transactions; - C. CREATE TABLE all_transactions AS
SELECT * FROM march_transactions
OUTER JOIN SELECT * FROM april_transactions; - D. CREATE TABLE all_transactions AS
SELECT * FROM march_transactions
INNER JOIN SELECT * FROM april_transactions; - E. CREATE TABLE all_transactions AS
SELECT * FROM march_transactions
INTERSECT SELECT * from april_transactions;
正解：A
質問 # 18
Which of the following Git operations must be performed outside of Databricks Repos?
- A. Clone
- B. Commit
- C. Merge
- D. Push
- E. Pull
正解：A
質問 # 19
A data engineer is designing a data pipeline. The source system generates files in a shared directory that is also used by other processes. As a result, the files should be kept as is and will accumulate in the directory. The data engineer needs to identify which files are new since the previous run in the pipeline, and set up the pipeline to only ingest those new files with each run.
Which of the following tools can the data engineer use to solve this problem?
- A. Auto Loader
- B. Data Explorer
- C. Delta Lake
- D. Databricks SQL
- E. Unity Catalog
正解：A
質問 # 20
A data engineer wants to create a new table containing the names of customers that live in France.
They have written the following command:
A senior data engineer mentions that it is organization policy to include a table property indicating that the new table includes personally identifiable information (PII).
Which of the following lines of code fills in the above blank to successfully complete the task?
- A. PII
- B. "COMMENT PII"
- C. TBLPROPERTIES PII
- D. There is no way to indicate whether a table contains PII.
- E. COMMENT "Contains PII"
正解：C
質問 # 21
A data engineer has three tables in a Delta Live Tables (DLT) pipeline. They have configured the pipeline to drop invalid records at each table. They notice that some data is being dropped due to quality concerns at some point in the DLT pipeline. They would like to determine at which table in their pipeline the data is being dropped.
Which of the following approaches can the data engineer take to identify the table that is dropping the records?
- A. They can navigate to the DLT pipeline page, click on the "Error" button, and review the present errors.
- B. They can set up separate expectations for each table when developing their DLT pipeline.
- C. They cannot determine which table is dropping the records.
- D. They can set up DLT to notify them via email when records are dropped.
- E. They can navigate to the DLT pipeline page, click on each table, and view the data quality statistics.
正解：A
質問 # 22
A data analyst has a series of queries in a SQL program. The data analyst wants this program to run every day.
They only want the final query in the program to run on Sundays. They ask for help from the data engineering team to complete this task.
Which of the following approaches could be used by the data engineering team to complete this task?
- A. They could submit a feature request with Databricks to add this functionality.
- B. They could redesign the data model to separate the data used in the final query into a new table.
- C. They could automatically restrict access to the source table in the final query so that it is only accessible on Sundays.
- D. They could wrap the queries using PySpark and use Python's control flow system to determine when to run the final query.
- E. They could only run the entire program on Sundays.
正解：D
質問 # 23
Which of the following commands will return the location of database customer360?
- A. DESCRIBE LOCATION customer360;
- B. DESCRIBE DATABASE customer360;
- C. USE DATABASE customer360;
- D. ALTER DATABASE customer360 SET DBPROPERTIES ('location' = '/user'};
- E. DROP DATABASE customer360;
正解：B
質問 # 24
An engineering manager wants to monitor the performance of a recent project using a Databricks SQL query.
For the first week following the project's release, the managerwants the query results to be updated every minute. However, the manager is concerned that the compute resources used for the query will be left running and cost the organization a lot of money beyond the first week of the project's release.
Which of the following approaches can the engineering team use to ensure the query does not cost the organization any money beyond the first week of the project's release?
- A. They can set a limit to the number of DBUs that are consumed by the SQL Endpoint.
- B. They cannot ensure the query does not cost the organization money beyond the first week of the project's release.
- C. They can set the query's refresh schedule to end after a certain number of refreshes.
- D. They can set a limit to the number of individuals that are able to manage the query's refresh schedule.
- E. They can set the query's refresh schedule to end on a certain date in the query scheduler.
正解：E
質問 # 25
A data engineer wants to create a data entity from a couple of tables. The data entity must be used by other data engineers in other sessions. It also must be saved to a physical location.
Which of the following data entities should the data engineer create?
- A. View
- B. Function
- C. Database
- D. Temporary view
- E. Table
正解：A
質問 # 26
A data engineer only wants to execute the final block of a Python program if the Python variable day_of_week is equal to 1 and the Python variable review_period is True.
Which of the following control flow statements should the data engineer use to begin this conditionally executed code block?
- A. if day_of_week = 1 and review_period:
- B. if day_of_week == 1 and review_period == "True":
- C. if day_of_week == 1 and review_period:
- D. if day_of_week = 1 & review_period: = "True":
- E. if day_of_week = 1 and review_period = "True":
正解：B
質問 # 27
A data analysis team has noticed that their Databricks SQL queries are running too slowly when connected to their always-on SQL endpoint. They claim that this issue is present when many members of the team are running small queries simultaneously. They ask the data engineering team for help. The data engineering team notices that each of the team's queries uses the same SQL endpoint.
Which of the following approaches can the data engineering team use to improve the latency of the team's queries?
- A. They can increase the cluster size of the SQL endpoint.
- B. They can increase the maximum bound of the SQL endpoint's scaling range.
- C. They can turn on the Serverless feature for the SQL endpoint.
- D. They can turn on the Auto Stop feature for the SQL endpoint.
- E. They can turn on the Serverless feature for the SQL endpoint and change the Spot Instance Policy to
"Reliability Optimized."
正解：B
質問 # 28
A Delta Live Table pipeline includes two datasets defined using STREAMING LIVE TABLE. Three datasets are defined against Delta Lake table sources using LIVE TABLE.
The table is configured to run in Production mode using the Continuous Pipeline Mode.
Assuming previously unprocessed data exists and all definitions are valid, what is the expected outcome after clicking Start to update the pipeline?
- A. All datasets will be updated once and the pipeline will shut down. The compute resources will be terminated.
- B. All datasets will be updated once and the pipeline will persist without any processing. The compute resources will persist but go unused.
- C. All datasets will be updated at set intervals until the pipeline is shut down. The compute resources will be deployed for the update and terminated when the pipeline is stopped.
- D. All datasets will be updated at set intervals until the pipeline is shut down. The compute resources will persist to allow for additional testing.
- E. All datasets will be updated once and the pipeline will shut down. The compute resources will persist to allow for additional testing.
正解：E
質問 # 29
A single Job runs two notebooks as two separate tasks. A data engineer has noticed that one of the notebooks is running slowly in the Job's current run. The data engineer asks a tech lead for help in identifying why this might be the case.
Which of the following approaches can the tech lead use to identify why the notebook is running slowly as part of the Job?
- A. They can navigate to the Tasks tab in the Jobs UI and click on the active run to review the processing notebook.
- B. There is no way to determine why a Job task is running slowly.
- C. They can navigate to the Tasks tab in the Jobs UI to immediately review the processing notebook.
- D. They can navigate to the Runs tab in the Jobs UI to immediately review the processing notebook.
- E. They can navigate to the Runs tab in the Jobs UI and click on the active run to review the processing notebook.
正解：E
質問 # 30
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