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Guide for Certified Data Engineer Professional

Quiz Certified Data Engineer Professional

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Quiz

1/10
Data Governance and Security
Which of the following is a common best practice for managing data governance in a Databricks environment?
Select the answer
1 correct answer
A.
Implement role-based access control for all users
B.
Use overly complex SQL queries to secure data access
C.
Rely on ad hoc permissions without a central policy
D.
Disable logging features to improve performance

Quiz

2/10
Machine Learning Integration
Which tool provided by Databricks is primarily used for managing the complete machine learning lifecycle, including experiment tracking, model packaging, and deployment?
Select the answer
1 correct answer
A.
MLflow
B.
TensorFlow
C.
Scikit-learn
D.
Spark MLlib

Quiz

3/10
Delta Lake
Which mechanism in Delta Lake is primarily responsible for ensuring ACID transactions and data consistency during concurrent operations?
Select the answer
1 correct answer
A.
Delta Transaction Log
B.
Optimistic Concurrency Control
C.
Schema Enforcement
D.
Time Travel

Quiz

4/10
Data Management
Which of the following features provided by Delta Lake significantly enhance data management and governance in a data lake environment?
Select the answer
1 correct answer
A.
Time Travel for historical data queries
B.
Schema Enforcement and Evolution
C.
ACID Transactions for reliable data modifications
D.
All of the above

Quiz

5/10
Data Transformation and ETL Processes
What advantage does using Delta Lake provide in ETL processes on Databricks?
Select the answer
1 correct answer
A.
ACID transactions
B.
Schema enforcement
C.
Time travel feature
D.
All of the above

Quiz

6/10
Performance Tuning in Spark
Which Spark configuration parameter is primarily used to control the number of shuffle partitions in Spark SQL and can significantly affect job performance?
Select the answer
1 correct answer
A.
spark.sql.shuffle.partitions
B.
spark.executor.memory
C.
spark.executor.cores
D.
spark.driver.maxResultSize

Quiz

7/10
Databricks Workspace and Notebooks
Which feature in the Databricks Workspace allows users to write, run, and share code collaboratively?
Select the answer
1 correct answer
A.
Databricks Notebooks
B.
Databricks Dashboards
C.
Databricks Repos
D.
Databricks Jobs

Quiz

8/10
Delta Lake and Data Management
Which Delta Lake feature allows retrieval of previous versions of a dataset for rollback and auditing purposes?
Select the answer
1 correct answer
A.
Schema enforcement
B.
Time travel
C.
Data compaction
D.
Streaming ingestion

Quiz

9/10
Data Ingestion Techniques
Which of the following best describes the Databricks Auto Loader for data ingestion?
Select the answer
1 correct answer
A.
It continuously performs schema inference and processes new files incrementally as they arrive
B.
It relies solely on manual updates to discover new data
C.
It is designed exclusively for batch ingestion and does not support streaming
D.
It requires additional custom code to perform schema inference

Quiz

10/10
Streaming Data Processing
Which of the following best describes micro-batching in Spark Structured Streaming?
Select the answer
1 correct answer
A.
It processes streaming data in small, fixed-size batches to simulate continuous processing.
B.
It processes data one event at a time with each record triggering a computation.
C.
It waits until the batch collects a predetermined number of records before processing.
D.
It immediately updates the output sink with each arriving record.
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Info quiz:

  • Quiz name:Certified Data Engineer Professional
  • Total number of questions:521
  • Number of questions for the test:50
  • Pass score:80%

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