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Cloudera CDP-3002 Exam Syllabus Topics:
Section
Weight
Objectives
Topic 1: Data Storage & Modeling
22%
- Apache Iceberg
1. Table management & ACID compliance
2. Partitioning & layout optimization
- Data Formats & Storage
1. Columnar formats (Parquet, ORC)
2. Schema design & evolution
- Distributed Persistence
1. HDFS & cloud storage integration
2. Data locality & access patterns
Topic 2: Workflow Orchestration
15%
- Pipeline Development
1. Workflow monitoring & alerting
2. End-to-end data pipeline design
- Apache Airflow
1. Task dependencies & error handling
2. DAG design & scheduling
3. Incremental data extraction
Topic 3: Integration & Optimization
5%
- Hive & Spark Integration
1. Cross-engine query execution
- Troubleshooting
1. Resource management
2. Bottleneck identification
Topic 4: Deployment & Operations
10%
- CDP Data Engineering Service
1. API & CLI usage
2. Environment configuration
- Security & Governance
1. Access control & authentication
2. Data lineage & compliance
Topic 5: Apache Spark Development & Processing
48%
- Spark Architecture & Execution Model
1. Spark application lifecycle
2. Distributed data processing concepts
- Spark SQL & DataFrames
1. Query optimization & execution plans
2. DataFrame/Dataset API usage
- Spark Streaming & Structured Streaming
1. Checkpointing & fault tolerance
2. Micro-batch & stream processing
- Performance Optimization
1. Job tuning, partitioning & bucketing
2. Caching & persistence strategies
Cloudera CDP Data Engineer - Certification Sample Questions:
Which of the following is a critical consideration when deciding between using a sort merge join and a shuffle hash join in a distributed data processing system like Spark?
A. The network latency between nodes in the cluster
B. The availability of secondary indexes on the join keys
C. The version of the Spark cluster being used
D. The relative size of the datasets and the available memory on each executor
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In a CI/CD pipeline, what is a key consideration when integrating Cloudera Data Engineering (CDE. service API calls for deploying Spark jobs, specifically regarding security?
A. Incorporating API token rotation and secure secret management practices
B. Hardcoding API keys in the pipeline scripts
C. Using generic Spark Docker images for all jobs to avoid API customization
D. Disabling TLS for API endpoints to simplify integration
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You have a DataFrame containing sales data with columns "product_id", "customer id", and "amount". How can you efficiently calculate the total sales per customer?
A. Implement a custom function to group and sum the sales
B. Utilize spark SQL's GROUP BY and SUM functions
C. Use a loop to iterate through the DataFrame and accumulate the sales for each customer
D. Leverage Spark's machine learning library (MLIiB. for aggregation
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discussion
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