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Guide for Databricks-Databricks-Certified-Data-Engineer-Associate

Quiz Databricks-Databricks-Certified-Data-Engineer-Associate

10/45 Questions|Updated on 2022/11/04
Free Test
/ 10

Quiz

1/10
Which of the following Git operations must be performed outside of Databricks Repos?
Select the answer
1 correct answer
A.
Commit
B.
Pull
C.
Push
D.
Clone
E.
Merge

Quiz

2/10
A data organization leader is upset about the data analysis team’s reports being different from the data engineering team’s reports. The leader believes the siloed nature of their organization’s data engineering and data analysis architectures is to blame. Which of the following describes how a data lakehouse could alleviate this issue?
Select the answer
1 correct answer
A.
Both teams would autoscale their work as data size evolves
B.
Both teams would use the same source of truth for their work
C.
Both teams would reorganize to report to the same department
D.
Both teams would be able to collaborate on projects in real-time
E.
Both teams would respond more quickly to ad-hoc requests

Quiz

3/10
Which of the following describes a scenario in which a data team will want to utilize cluster pools?
Select the answer
1 correct answer
A.
An automated report needs to be refreshed as quickly as possible.
B.
An automated report needs to be made reproducible.
C.
An automated report needs to be tested to identify errors.
D.
An automated report needs to be version-controlled across multiple collaborators.
E.
An automated report needs to be runnable by all stakeholders.

Quiz

4/10
Which of the following is hosted completely in the control plane of the classic Databricks architecture?
Select the answer
1 correct answer
A.
Worker node
B.
JDBC data source
C.
Databricks web application Questions PDF 2/20
D.
Databricks Filesystem
E.
Driver node

Quiz

5/10
Which of the following benefits of using the Databricks Lakehouse Platform is provided by Delta Lake?
Select the answer
1 correct answer
A.
The ability to manipulate the same data using a variety of languages
B.
The ability to collaborate in real time on a single notebook
C.
The ability to set up alerts for query failures
D.
The ability to support batch and streaming workloads
E.
The ability to distribute complex data operations

Quiz

6/10
Which of the following describes the storage organization of a Delta table?
Select the answer
1 correct answer
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 data, history, metadata, and other attributes.
D.
Delta tables are stored in a collection of files that contain only the data stored within the table.
E.
Delta tables are stored in a single file that contains only the data stored within the table.

Quiz

7/10
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?
Select the answer
1 correct answer
A.
SELECT * FROM my_table WHERE age > 25;
B.
UPDATE my_table WHERE age > 25;
C.
DELETE FROM my_table WHERE age > 25;
D.
UPDATE my_table WHERE age <= 25;
E.
DELETE FROM my_table WHERE age <= 25; Questions PDF 3/20

Quiz

8/10
A data engineer has realized that they made a mistake when making a daily update to a table. They need to use Delta time travel to restore the table to a version that is 3 days old. However, when the data engineer attempts to time travel to the older version, they are unable to restore the data because the data files have been deleted. Which of the following explains why the data files are no longer present?
Select the answer
1 correct answer
A.
The VACUUM command was run on the table
B.
The TIME TRAVEL command was run on the table
C.
The DELETE HISTORY command was run on the table
D.
The OPTIMIZE command was nun on the table
E.
The HISTORY command was run on the table

Quiz

9/10
Which of the following data lakehouse features results in improved data quality over a traditional data lake?
Select the answer
1 correct answer
A.
A data lakehouse provides storage solutions for structured and unstructured data.
B.
A data lakehouse supports ACID-compliant transactions.
C.
A data lakehouse allows the use of SQL queries to examine data.
D.
A data lakehouse stores data in open formats.
E.
A data lakehouse enables machine learning and artificial Intelligence workloads. Questions PDF 4/20

Quiz

10/10
A data engineer needs to determine whether to use the built-in Databricks Notebooks versioning or version their project using Databricks Repos. Which of the following is an advantage of using Databricks Repos over the Databricks Notebooks versioning?
Select the answer
1 correct answer
A.
Databricks Repos automatically saves development progress
B.
Databricks Repos supports the use of multiple branches
C.
Databricks Repos allows users to revert to previous versions of a notebook
D.
Databricks Repos provides the ability to comment on specific changes
E.
Databricks Repos is wholly housed within the Databricks Lakehouse Platform
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  • Quiz name:Databricks-Databricks-Certified-Data-Engineer-Associate
  • Total number of questions:45
  • Number of questions for the test:50
  • Pass score:80%

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