PASS GUARANTEED QUIZ 2025 CDP-3002: PROFESSIONAL CDP DATA ENGINEER - CERTIFICATION EXAM EXAM OBJECTIVES PDF

Pass Guaranteed Quiz 2025 CDP-3002: Professional CDP Data Engineer - Certification Exam Exam Objectives Pdf

Pass Guaranteed Quiz 2025 CDP-3002: Professional CDP Data Engineer - Certification Exam Exam Objectives Pdf

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Tags: CDP-3002 Exam Objectives Pdf, CDP-3002 Exam Dumps Pdf, CDP-3002 Valid Exam Papers, New CDP-3002 Test Braindumps, CDP-3002 New Braindumps Pdf

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Cloudera CDP Data Engineer - Certification Exam Sample Questions (Q106-Q111):

NEW QUESTION # 106
Which of the following is TRUE about using Explain Plans for performance tuning?

  • A. They can help identify operations that may become performance bottlenecks
  • B. They are only useful for queries that involve joins
  • C. Explain Plans always show the actual runtime of a query
  • D. They provide detailed network latency information

Answer: A

Explanation:
Explain Plans are valuable for identifying potential performance bottlenecks in a query, such as expensive joins or full table scans. They do not show actual runtime or detailed network latency and are useful for more than just queries involving joins.


NEW QUESTION # 107
How can you secure your data pipelines within the Cloudera Data Engineering service to ensure data privacy and compliance?

  • A. Employ a layered security approach combining access control, encryption, and audit logging.
  • B. Utilize Cloudera Manager security features without additional configuration within the Data Engineering service.
  • C. Implement encryption for data at rest and in transit but ignore user access control.
  • D. Rely solely on access control lists (ACLs) defined on individual data assets.

Answer: A

Explanation:
A single security measure is insufficient for robust pipeline security. Option c outlines a comprehensive approach:Access control: Utilize Apache Ranger to define granular access permissions for users and groups, restricting access to sensitive data. Encryption: Encrypt data at rest (e.g., in cloud storagE. and in transit (during pipeline execution) to protect against unauthorized access. Audit logging: Enable audit logging to track user activities and data access attempts within the pipelines, facilitating compliance and forensic analysis.


NEW QUESTION # 108
In Apache Airflow, what is the purpose of setting max_active_runs in a DAG's configuration?

  • A. To determine the maximum number of DAG files that can be parsed at any given time.
  • B. To limit the number of task instances that can run concurrently within the DAG.
  • C. To specify the maximum number of DAG runs that can be executed in parallel.
  • D. To control the number of retries for a failed task.

Answer: C

Explanation:
The max_active_runs setting in a DAG's configuration limits the number of DAG runs that can be executed concurrently. This is useful for controlling resource utilization and ensuring that the Airflow instance does not get overwhelmed by too many parallel executions of the same DAG.


NEW QUESTION # 109
Discuss the trade-offs between using wide tables (many columns) and narrow tables (few columns) in Spark and the implications for data processing efficiency.

  • A. Both A and C.
  • B. Wide tables require more storage and may lead to performance overhead due to data serialization.
  • C. Spark can optimize data access patterns for both wide and narrow tables equally.
  • D. Wide tables offer better performance for filtering operations, while narrow tables excel in aggregations.

Answer: A

Explanation:
Wide tables can lead to performance inefficiencies due to larger data serialization costs in shuffle operations. Narrow tables, however, may require more complex logic for joining data from multiple columns. Choosing the optimal format depends on access patterns and trade-offs in storage and processing efficiency.


NEW QUESTION # 110
Your team is integrating PySpark with a MySQL database. You need to read data from a table named 'employees'. Which of the following PySpark code snippets correctly accomplishes this task?

  • A.
  • B.
  • C.
  • D.

Answer: C

Explanation:
Option A is correct because it properly uses the JDBC format with all the necessary options including the URL, database table, and user credentials.


NEW QUESTION # 111
......

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