2023 Latest Databricks-Certified-Data-Engineer-Associate dumps Exam Material with 47 Questions
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NEW QUESTION # 22
Which of the following describes the storage organization of a Delta table?
- A. Delta tables are stored in a single file that contains data, history, metadata, and other attributes.
- B. Delta tables store their data in a single file and all metadata in a collection of files in a separate location.
- C. Delta tables are stored in a collection of files that contain only the data stored within the table.
- D. Delta tables are stored in a collection of files that contain data, history, metadata, and other attributes.
- E. Delta tables are stored in a single file that contains only the data stored within the table.
Answer: D
NEW QUESTION # 23
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 cannot determine which table is dropping the records.
- C. They can set up DLT to notify them via email when records are dropped.
- D. They can navigate to the DLT pipeline page, click on each table, and view the data quality statistics.
- E. They can set up separate expectations for each table when developing their DLT pipeline.
Answer: A
NEW QUESTION # 24
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 complex, nested data ingested from JSON files
- C. An ability to work with data in a variety of types at once
- D. An ability to work with time-related data in specified intervals
- E. An ability to work with data within certain partitions and windows
Answer: E
NEW QUESTION # 25
A new data engineering team team. has been assigned to an ELT project. The new data engineering team will need full privileges on the database customers to fully manage the project.
Which of the following commands can be used to grant full permissions on the database to the new data engineering team?
- A. GRANT ALL PRIVILEGES ON DATABASE customers TO team;
- B. GRANT ALL PRIVILEGES ON DATABASE team TO customers;
- C. GRANT SELECT CREATE MODIFY USAGE PRIVILEGES ON DATABASE customers TO team;
- D. GRANT SELECT PRIVILEGES ON DATABASE customers TO teams;
- E. GRANT USAGE ON DATABASE customers TO team;
Answer: A
NEW QUESTION # 26
A data engineer has been using a Databricks SQL dashboard to monitor the cleanliness of the input data to an ELT job. The ELT job has its Databricks SQL query that returns the number of input records containing unexpected NULL values. The data engineer wants their entire team to be notified via a messaging webhook whenever this value reaches 100.
Which of the following approaches can the data engineer use to notify their entire team via a messaging webhook whenever the number of NULL values reaches 100?
- A. They can set up an Alert with a new email alert destination.
- B. They can set up an Alert with a custom template.
- C. They can set up an Alert with one-time notifications.
- D. They can set up an Alert without notifications.
- E. They can set up an Alert with a new webhook alert destination.
Answer: E
NEW QUESTION # 27
Which of the following tools is used by Auto Loader process data incrementally?
- A. Unity Catalog
- B. Data Explorer
- C. Spark Structured Streaming
- D. Checkpointing
- E. Databricks SQL
Answer: C
NEW QUESTION # 28
A data engineer wants to schedule their Databricks SQL dashboard to refresh once per day, but they only want the associated SQL endpoint to be running when it is necessary.
Which of the following approaches can the data engineer use to minimize the total running time of the SQL endpoint used in the refresh schedule of their dashboard?
- A. They can ensure the dashboard's SQL endpoint is not one of the included query's SQL endpoint.
- B. They can ensure the dashboard's SQL endpoint matches each of the queries' SQL endpoints.
- C. They can set up the dashboard's SQL endpoint to be serverless.
- D. They can reduce the cluster size of the SQL endpoint.
- E. They can turn on the Auto Stop feature for the SQL endpoint.
Answer: E
NEW QUESTION # 29
In order for Structured Streaming to reliably track the exact progress of the processing so that it can handle any kind of failure by restarting and/or reprocessing, which of the following two approaches is used by Spark to record the offset range of the data being processed in each trigger?
- A. Checkpointing and Idempotent Sinks
- B. Structured Streaming cannot record the offset range of the data being processed in each trigger.
- C. Replayable Sources and Idempotent Sinks
- D. Write-ahead Logs and Idempotent Sinks
- E. Checkpointing and Write-ahead Logs
Answer: A
NEW QUESTION # 30
Which of the following code blocks will remove the rows where the value in column age is greater than 25 from the existing Delta table my_table and save the updated table?
- A. DELETE FROM my_table WHERE age > 25;
- B. UPDATE my_table WHERE age > 25;
- C. UPDATE my_table WHERE age <= 25;
- D. DELETE FROM my_table WHERE age <= 25;
- E. SELECT * FROM my_table WHERE age > 25;
Answer: A
NEW QUESTION # 31
A data engineer is attempting to drop a Spark SQL table my_table. The data engineer wants to delete all table metadata and data.
They run the following command:
DROP TABLE IF EXISTS my_table
While the object no longer appears when they run SHOW TABLES, the data files still exist.
Which of the following describes why the data files still exist and the metadata files were deleted?
- A. The table did not have a location
- B. The table was managed
- C. The table's data was smaller than 10 GB
- D. The table was external
- E. The table's data was larger than 10 GB
Answer: D
NEW QUESTION # 32
A data engineer needs to create a table in Databricks using data from their organization's existing SQLite database.
They run the following command:
Which of the following lines of code fills in the above blank to successfully complete the task?
- A. autoloader
- B. org.apache.spark.sql.jdbc
- C. DELTA
- D. org.apache.spark.sql.sqlite
- E. sqlite
Answer: D
NEW QUESTION # 33
Which of the following describes a scenario in which a data team will want to utilize cluster pools?
- A. An automated report needs to be tested to identify errors.
- B. An automated report needs to be made reproducible.
- C. An automated report needs to be version-controlled across multiple collaborators.
- D. An automated report needs to be runnable by all stakeholders.
- E. An automated report needs to be refreshed as quickly as possible.
Answer: D
NEW QUESTION # 34
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 at set intervals until the pipeline is shut down. The compute resources will persist to allow for additional testing.
- B. All datasets will be updated once and the pipeline will shut down. The compute resources will persist to allow for additional testing.
- C. All datasets will be updated once and the pipeline will persist without any processing. The compute resources will persist but go unused.
- D. All datasets will be updated once and the pipeline will shut down. The compute resources will be terminated.
- E. 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.
Answer: B
NEW QUESTION # 35
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. COMMENT "Contains PII"
- B. PII
- C. There is no way to indicate whether a table contains PII.
- D. "COMMENT PII"
- E. TBLPROPERTIES PII
Answer: E
NEW QUESTION # 36
Which of the following data lakehouse features results in improved data quality over a traditional data lake?
- A. A data lakehouse enables machine learning and artificial Intelligence workloads.
- B. A data lakehouse provides storage solutions for structured and unstructured data.
- C. A data lakehouse allows the use of SQL queries to examine data.
- D. A data lakehouse supports ACID-compliant transactions.
- E. A data lakehouse stores data in open formats.
Answer: C
NEW QUESTION # 37
Which of the following Git operations must be performed outside of Databricks Repos?
- A. Commit
- B. Pull
- C. Clone
- D. Merge
- E. Push
Answer: C
NEW QUESTION # 38
Which of the following describes the relationship between Gold tables and Silver tables?
- A. Gold tables are more likely to contain valuable data than Silver tables.
- B. Gold tables are more likely to contain a less refined view of data than Silver tables.
- C. Gold tables are more likely to contain more data than Silver tables.
- D. Gold tables are more likely to contain truthful data than Silver tables.
- E. Gold tables are more likely to contain aggregations than Silver tables.
Answer: B
NEW QUESTION # 39
Which of the following commands will return the location of database customer360?
- A. USE DATABASE customer360;
- B. DROP DATABASE customer360;
- C. ALTER DATABASE customer360 SET DBPROPERTIES ('location' = '/user'};
- D. DESCRIBE LOCATION customer360;
- E. DESCRIBE DATABASE customer360;
Answer: E
NEW QUESTION # 40
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