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Cloudera CDP-3002 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Integration & Optimization | 5% | - Troubleshooting
|
| Topic 2: Data Storage & Modeling | 22% | - Apache Iceberg
|
| Topic 3: Deployment & Operations | 10% | - CDP Data Engineering Service
|
| Topic 4: Apache Spark Development & Processing | 48% | - Spark Architecture & Execution Model
|
| Topic 5: Workflow Orchestration | 15% | - Pipeline Development
|
Cloudera CDP Data Engineer - Certification Sample Questions:
1. In the context of Cloudera's Optimization Framework, what is the purpose of dynamic partition pruning?
A) To increase the size of partitions dynamically based on data volume
B) To dynamically eliminate unnecessary partitions from a query plan based on runtime statistics
C) To partition data dynamically based on query execution plans
D) To update partition metadata in real-time
2. What is the significance of "Sort Merge Join" appearing in an Explain Plan in Cloudera's SQL engines?
A) It signifies that the join operation is performed by sorting and then merging two datasets, which can be efficient for large, sorted datasets
B) It suggests that the join operation is performed without sorting, leading to faster execution
C) It indicates that the query will benefit from additional indexes
D) It is the least preferred join method due to its high CPU usage
3. 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) Spark can optimize data access patterns for both wide and narrow tables equally.
C) Wide tables require more storage and may lead to performance overhead due to data serialization.
D) Wide tables offer better performance for filtering operations, while narrow tables excel in aggregations.
4. Which security feature offered by the Cloudera Data Engineering service allows granular access control to data pipelines and resources?
A) Apache Ranger
B) Role-based access control (RBAC.
C) Cloudera Manager Security
D) Kerberos authentication
5. You're tasked with deploying a new Airflow DAG to production. What are some key considerations for ensuring a smooth and successful deployment?
A) Thoroughly test the DAG in a staging environment before deploying it to production.
B) Utilize infrastructure as code (laC. tools like Terraform to manage Airflow deployment and configuration in a consistent and repeatable manner.
C) All of the above
D) Deploy the DAG directly to the production environment without any testing or staging phase.
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: A | Question # 3 Answer: A | Question # 4 Answer: A | Question # 5 Answer: A,B,C |
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