Databricks Databricks-Certified-Professional-Data-Engineer Real Exam Questions and Answers FREE [Q33-Q51]

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Databricks Databricks-Certified-Professional-Data-Engineer Real Exam Questions and Answers FREE

Exam Dumps Databricks-Certified-Professional-Data-Engineer Practice Free Latest Databricks Practice Tests

Databricks Certified Professional Data Engineer exam is an excellent choice for data engineers who want to demonstrate their expertise in using Databricks to process big data. Databricks Certified Professional Data Engineer Exam certification exam is recognized globally and highly valued by organizations that use Databricks for their big data processing needs. By passing the exam, data engineers can validate their knowledge and skills and increase their chances of career advancement.

 

QUESTION 33
Which of the following python statements can be used to replace the schema name and table name in the query?

 
 
 
 

QUESTION 34
Data engineering team is required to share the data with Data science team and both the teams are using different workspaces in the same organizationwhich of the following techniques can be used to simplify sharing data across?
*Please note the question is asking how data is shared within an organization across multiple workspaces.

 
 
 
 
 

QUESTION 35
The DevOps team has configured a production workload as a collection of notebooks scheduled to run daily using the Jobs UI. A new data engineering hire is onboarding to the team and has requested access to one of these notebooks to review the production logic.
What are the maximum notebook permissions that can be granted to the user without allowing accidental changes to production code or data?

 
 
 
 
 

QUESTION 36
The operations team is interested in monitoring the recently launched product, team wants to set up an email alert when the number of units sold increases by more than 10,000 units. They want to monitor this every 5 mins.
Fill in the below blanks to finish the steps we need to take
* Create ___ query that calculates total units sold
* Setup ____ with query on trigger condition Units Sold > 10,000
* Setup ____ to run every 5 mins
* Add destination ______

 
 
 
 
 

QUESTION 37
Although the Databricks Utilities Secrets module provides tools to store sensitive credentials and avoid accidentally displaying them in plain text users should still be careful with which credentials are stored here and which users have access to using these secrets.
Which statement describes a limitation of Databricks Secrets?

 
 
 
 
 

QUESTION 38
A notebook accepts an input parameter that is assigned to a python variable called department and this is an optional parameter to the notebook, you are looking to control the flow of the code using this parameter. you have to check department variable is present then execute the code and if no department value is passed then skip the code execution. How do you achieve this using python?

 
 
 
 
 

QUESTION 39
Which of the following describes how Databricks Repos can help facilitate CI/CD workflows on the Databricks Lakehouse Platform?

 
 
 
 
 

QUESTION 40
A table customerLocations exists with the following schema:
1. id STRING,
2. date STRING,
3. city STRING,
4. country STRING
A senior data engineer wants to create a new table from this table using the following command:
1. CREATE TABLE customersPerCountry AS
2. SELECT country,
3. COUNT(*) AS customers
4. FROM customerLocations
5. GROUP BY country;
A junior data engineer asks why the schema is not being declared for the new table. Which of the following
responses explains why declaring the schema is not necessary?

 
 
 
 
 

QUESTION 41
A data engineer has ingested data from an external source into a PySpark DataFrame raw_df. They need to
briefly make this data available in SQL for a data analyst to perform a quality assurance check on the data.
Which of the following commands should the data engineer run to make this data available in SQL for only
the remainder of the Spark session?

 
 
 
 
 

QUESTION 42
Which of the following describes a benefit of a data lakehouse that is unavailable in a traditional data
warehouse?

 
 
 
 
 

QUESTION 43
A junior data engineer has ingested a JSON file into a table raw_table with the following schema:
1. cart_id STRING,
2. items ARRAY<item_id:STRING>
The junior data engineer would like to unnest the items column in raw_table to result in a new table with the
following schema:
1.cart_id STRING,
2.item_id STRING
Which of the following commands should the junior data engineer run to complete this task?

 
 
 
 
 

QUESTION 44
Which of the following functions can be used to convert JSON string to Struct data type?

 
 
 
 
 

QUESTION 45
Which of the following SQL statement can be used to query a table by eliminating duplicate rows from the query results?

 
 
 
 
 

QUESTION 46
You are asked to set up an alert to notify in an email every time a KPI indicater increases beyond a threshold value, team also asked you to include the actual value in the alert email notification.

 
 
 
 
 

QUESTION 47
You noticed that a team member started using an all-purpose cluster to develop a notebook and used the same all-purpose cluster to set up a job that can run every 30 mins so they can update un-derlying tables which are used in a dashboard. What would you recommend for reducing the overall cost of this approach?

 
 
 
 
 

QUESTION 48
You are tasked to set up a set notebook as a job for six departments and each department can run the task parallelly, the notebook takes an input parameter dept number to process the data by department, how do you go about to setup this up in job?

 
 
 
 
 

QUESTION 49
If you create a database sample_db with the statement CREATE DATABASE sample_db what will be the default location of the database in DBFS?

 
 
 
 
 

QUESTION 50
A newly joined team member John Smith in the Marketing team currently has access read access to sales tables but does not have access to update the table, which of the following commands help you accomplish this?

 
 
 
 
 

QUESTION 51
A data engineer is using a Databricks SQL query to monitor the performance of an ELT job. The ELT job is triggered by a specific number of input records being ready to process. The Databricks SQL query returns the number of minutes since the job’s most recent runtime. Which of the following approaches can enable the data engineering team to be notified if the ELT job has not been run in an hour?

 
 
 
 
 

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