2024 Latest Databricks-Certified-Professional-Data-Engineer dumps Exam Material with 60 Questions [Q35-Q57]

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2024 Latest Databricks-Certified-Professional-Data-Engineer dumps Exam Material with 60 Questions

Databricks Databricks-Certified-Professional-Data-Engineer Questions and Answers Guarantee you Oass the Test Easily

QUESTION 35
A data engineer needs to create a database called customer360 at the loca-tion /customer/customer360. The
data engineer is unsure if one of their colleagues has already created the database.
Which of the following commands should the data engineer run to complete this task?

 
 
 
 
 

QUESTION 36
Which of the following SQL commands are used to append rows to an existing delta table?

 
 
 
 
 

QUESTION 37
What is the main difference between the bronze layer and silver layer in a medallion architecture?

 
 
 
 

QUESTION 38
Which of the statements are incorrect when choosing between lakehouse and Datawarehouse?

 
 
 
 
 

QUESTION 39
A dataset has been defined using Delta Live Tables and includes an expectations clause: CON-STRAINT valid_timestamp EXPECT (timestamp > ‘2020-01-01’) What is the expected behavior when a batch of data containing data that violates these constraints is processed?

 
 
 
 
 

QUESTION 40
A table nameduser_ltvis being used to create a view that will be used by data analysts on various teams. Users in the workspace are configured into groups, which are used for setting up data access using ACLs.
Theuser_ltvtable has the following schema:
email STRING, age INT, ltv INT
The following view definition is executed:

An analyst who is not a member of the marketing group executes the following query:
SELECT * FROM email_ltv
Which statement describes the results returned by this query?

 
 
 
 
 

QUESTION 41
Suppose there are three events then which formula must always be equal to P(E1|E2,E3)?

 
 
 
 
 

QUESTION 42
Which of the following locations hosts the driver and worker nodes of a Databricks-managed clus-ter?

 
 
 
 
 

QUESTION 43
You are trying to create an object by joining two tables that and it is accessible to data scientist’s team, so it does not get dropped if the cluster restarts or if the notebook is detached. What type of object are you trying to create?

 
 
 
 
 

QUESTION 44
Consider flipping a coin for which the probability of heads is p, where p is unknown, and our goa is to
estimate p. The obvious approach is to count how many times the coin came up heads and divide by the total
number of coin flips. If we flip the coin 1000 times and it comes up heads 367 times, it is very reasonable to
estimate p as approximately 0.367. However, suppose we flip the coin only twice and we get heads both times.
Is it reasonable to estimate p as 1.0? Intuitively, given that we only flipped the coin twice, it seems a bit
rash to conclude that the coin will always come up heads, and____________is a way of avoiding such rash
conclusions.

 
 
 
 

QUESTION 45
What steps need to be taken to set up a DELTA LIVE PIPELINE as a job using the workspace UI?

 
 
 
 

QUESTION 46
A data engineer has configured a Structured Streaming job to read from a table, manipulate the data, and then
perform a streaming write into a new table. The code block used by the data engineer is below:
1. (spark.table(“sales”)
2. .withColumn(“avg_price”, col(“sales”) / col(“units”))
3. .writeStream
4. .option(“checkpointLocation”, checkpointPath)
5. .outputMode(“complete”)
6. ._____
7. .table(“new_sales”)
8.)
If the data engineer only wants the query to execute a single micro-batch to process all of the available data,
which of the following lines of code should the data engineer use to fill in the blank?

 
 
 
 
 

QUESTION 47
What is the best way to describe a data lakehouse compared to a data warehouse?

 
 
 
 
 

QUESTION 48
A team member is leaving the team and he/she is currently the owner of the few tables, instead of transfering the ownership to a user you have decided to transfer the ownership to a group so in the future anyone in the group can manage the permissions rather than a single individual, which of the following commands help you accomplish this?

 
 
 
 
 

QUESTION 49
You are asked to create a model to predict the total number of monthly subscribers for a specific magazine.
You are provided with 1 year’s worth of subscription and payment data, user demographic data, and 10 years
worth of content of the magazine (articles and pictures). Which algorithm is the most appropriate for building
a predictive model for subscribers?

 
 
 
 

QUESTION 50
While investigating a data issue in a Delta table, you wanted to review logs to see when and who updated the table, what is the best way to review this data?

 
 
 
 
 

QUESTION 51
In which phase of the data analytics lifecycle do Data Scientists spend the most time in a project?

 
 
 
 

QUESTION 52
What is the purpose of a silver layer in Multi hop architecture?

 
 
 
 
 

QUESTION 53
Which of the following scenarios is the best fit for AUTO LOADER?

 
 
 
 
 

QUESTION 54
The downstream consumers of a Delta Lake table have been complaining about data quality issues impacting performance in their applications. Specifically, they have complained that invalidlatitudeandlongitudevalues in theactivity_detailstable have been breaking their ability to use other geolocation processes.
A junior engineer has written the following code to addCHECKconstraints to the Delta Lake table:

A senior engineer has confirmed the above logic is correct and the valid ranges for latitude and longitude are provided, but the code fails when executed.
Which statement explains the cause of this failure?

 
 
 
 
 

QUESTION 55
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 56
You are working to set up two notebooks to run on a schedule, the second notebook is dependent on the first notebook but both notebooks need different types of compute to run in an optimal fashion, what is the best way to set up these notebooks as jobs?

 
 
 
 
 

QUESTION 57
Which statement regarding stream-static joins and static Delta tables is correct?

 
 
 
 
 

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