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Pass Guaranteed Quiz Accurate Databricks - Databricks-Certified-Professional-Data-Engineer - Dumps Databricks Certified Professional Data Engineer Exam Free
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Databricks Certified Professional Data Engineer Exam Sample Questions (Q97-Q102):

NEW QUESTION # 97
The below spark command is looking to create a summary table based customerId and the number of times the customerId is present in the event_log delta table and write a one-time micro-batch to a summary table, fill in the blanks to complete the query.
1.spark._________
2. .format("delta")
3. .table("events_log")
4. .groupBy("customerId")
5. .count()
6. ._______
7. .format("delta")
8. .outputMode("complete")
9. .option("checkpointLocation", "/tmp/delta/eventsByCustomer/_checkpoints/")
10. .trigger(______)
11. .table("target_table")

  • A. writeStream, processingTime = once
  • B. readStream, writeStream, once
  • C. readStream, writeStream, once = True
  • D. writeStream, readStream, once = True
  • E. writeStream, readStream, once

Answer: C

Explanation:
Explanation
The answer is readStream, writeStream, once = True.
spark.readStream
format("delta")
table("events_log")
groupBy("customerId")
count()
writeStream
format("delta")
outputMode("complete")
option("checkpointLocation", "/tmp/delta/eventsByCustomer/_checkpoints/") trigger(once = True) table("target_table")


NEW QUESTION # 98
What is the probability that the total of two dice will be greater than 8, given that the first die is a 6?

  • A. 2/3
  • B. 1/6
  • C. 1/3
  • D. 2/6

Answer: A


NEW QUESTION # 99
A data engineer has created a Delta table as part of a data pipeline. Downstream data analysts now need
SELECT permission on the Delta table.
Assuming the data engineer is the Delta table owner, which part of the Databricks Lakehouse Plat-form can
the data engineer use to grant the data analysts the appropriate access?

  • A. Repos
  • B. Data Explorer
  • C. Databricks Filesystem
  • D. Jobs
    B Dashboards

Answer: A


NEW QUESTION # 100
What is the output of below function when executed with input parameters 1, 3 :
1.def check_input(x,y):
2. if x < y:
3. x= x+1
4. if x>y:
5. x= x+1
6. if x <y:
7. x = x+1
8. return x

  • A. 0
  • B. 1
  • C. 2
  • D. 3
  • E. 4

Answer: B


NEW QUESTION # 101
Which of the below SQL commands creates a session scoped temporary view?

  • A. 1.CREATE OR REPLACE VIEW view_name
    2.AS SELECT * FROM table_name
  • B. 1.CREATE OR REPLACE TEMPORARY VIEW view_name
    2.AS SELECT * FROM table_name
    (Correct)
  • C. 1.CREATE OR REPLACE LOCAL VIEW view_name
    2.AS SELECT * FROM table_name
  • D. 1.CREATE OR REPLACE LOCAL TEMPORARY VIEW view_name
    2.AS SELECT * FROM table_name
  • E. 1.CREATE OR REPLACE GLOBAL TEMPORARY VIEW view_name
    2.AS SELECT * FROM table_name

Answer: B

Explanation:
Explanation
The answer is
1.CREATE OR REPLACE TEMPORARY VIEW view_name
2.AS SELECT * FROM table_name
The default temporary view is session scoped, as soon as the session ends or if a notebook is de-tached session scoped temporary view is dropped.


NEW QUESTION # 102
......

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