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| Certification Vendor: | Databricks |
|---|---|
| Exam Name: | Databricks Certified Professional Data Engineer Exam |
| Exam Number: | Databricks-Certified-Professional-Data-Engineer |
| Certificate Validity Period: | 2 years |
| Exam Price: | USD 200 |
| Exam Format: | Multiple Choice |
| Exam Duration: | 120 minutes |
| Passing Score: | 70% |
| Real Exam Qty: | 59 |
| Related Certifications: | Databricks Certified Associate Data Engineer |
| Available Languages: | Portuguese (Brazil), Japanese, English, Korean |
| Recommended Training: | Databricks Data Engineer Professional Training |
| Exam Registration: | Databricks Official Certification Registration |
| Sample Questions: | Databricks Databricks-Certified-Professional-Data-Engineer Sample Questions |
| Exam Way: | Online proctored or onsite test center |
| Pre Condition: | No mandatory prerequisites; 1+ year hands-on experience and related training highly recommended |
| Official Syllabus URL: | https://www.databricks.com/learn/certification/data-engineer-professional |
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Databricks-Certified-Professional-Data-Engineer exam is a comprehensive assessment that evaluates a candidate's ability to design, implement, and manage data pipelines, as well as leverage advanced analytics and machine learning techniques on the Databricks platform. Databricks-Certified-Professional-Data-Engineer Exam consists of multiple-choice questions and requires candidates to complete a hands-on project that demonstrates their ability to build a data solution on the Databricks platform.
NEW QUESTION # 214
A junior data engineer has manually configured a series of jobs using the Databricks Jobs UI. Upon reviewing their work, the engineer realizes that they are listed as the "Owner" for each job. They attempt to transfer
"Owner" privileges to the "DevOps" group, but cannot successfully accomplish this task.
Which statement explains what is preventing this privilege transfer?
Answer: E
Explanation:
The reason why the junior data engineer cannot transfer "Owner" privileges to the "DevOps" group is that Databricks jobs must have exactly one owner, and the owner must be an individual user, not a group. A job cannot have more than one owner, and a job cannot have a group as an owner. The owner of a job is the user who created the job, or the user who was assigned the ownership by another user. The owner of a job has the highest level of permission on the job, and can grant or revoke permissions to other users or groups. However, the owner cannot transfer the ownership to a group, only to another user. Therefore, the junior data engineer's attempt to transfer "Owner" privileges to the "DevOps" group is not possible. References:
* Jobs access control: https://docs.databricks.com/security/access-control/table-acls/index.html
* Job permissions:
https://docs.databricks.com/security/access-control/table-acls/privileges.html#job-permissions
NEW QUESTION # 215
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?
Answer: D
Explanation:
Explanation
Answer is View, A view can be used to join multiple tables but also persist into meta stores so others can accesses it
NEW QUESTION # 216
A Delta Lake table was created with the below query:
Consider the following query:
DROP TABLE prod.sales_by_store -
If this statement is executed by a workspace admin, which result will occur?
Answer: E
Explanation:
When a table is dropped in Delta Lake, the table is removed from the catalog and the data is deleted. This is because Delta Lake is a transactional storage layer that provides ACID guarantees. When a table is dropped, the transaction log is updated to reflect the deletion of the table and the data is deleted from the underlying storage. References:
* https://docs.databricks.com/delta/quick-start.html#drop-a-table
* https://docs.databricks.com/delta/delta-batch.html#drop-table
NEW QUESTION # 217
A junior data engineer has been asked to develop a streaming data pipeline with a grouped aggregation using DataFrame df. The pipeline needs to calculate the average humidity and average temperature for each non-overlapping five-minute interval. Events are recorded once per minute per device.
df has the following schema: device_id INT, event_time TIMESTAMP, temp FLOAT, humidity FLOAT Code block:
df.withWatermark("event_time", "10 minutes")
.groupBy(
________,
"device_id"
)
.agg(
avg("temp").alias("avg_temp"),
avg("humidity").alias("avg_humidity")
)
.writeStream
.format("delta")
.saveAsTable("sensor_avg")
Which line of code correctly fills in the blank within the code block to complete this task?
Answer: D
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Exact extract: "window(timeColumn, windowDuration[, slideDuration]) returns a time window for grouping on event-time." Exact extract: "If slideDuration is not specified the windows are non-overlapping (tumbling) with length windowDuration." Exact extract: "Watermarking on the event-time column is required with aggregations to bound state and handle late data."
NEW QUESTION # 218
identifies if its needs to be converted to Fahrenheit or Celcius with a one-word letter F or C?
select udf_convert(60,'C') will result in 15.5
select udf_convert(10,'F') will result in 50
Answer: C
Explanation:
Explanation
The answer is
1.CREATE FUNCTION udf_convert(temp DOUBLE, measure STRING)
2.RETURNS DOUBLE
3.RETURN CASE WHEN measure == 'F' then (temp * 9/5) + 32
4. ELSE (temp - 33 ) * 5/9
5. END
NEW QUESTION # 219
......
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