Google Professional-Data-Engineer : Google Certified Professional Data Engineer Exam

Professional-Data-Engineer real exams

Exam Code: Professional-Data-Engineer

Exam Name: Google Certified Professional Data Engineer Exam

Updated: Aug 17, 2026

Q & A: 433 Questions and Answers

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Understanding functional and technical aspects of Google Professional Data Engineer Exam Operationalizing machine learning models

The following will be discussed here:

  • Retraining of machine learning models (Cloud Machine Learning Engine, BigQuery ML, Kubeflow, Spark ML)
  • Conversational experiences (e.g., Dialogflow)
  • Choosing the appropriate training and serving infrastructure
  • Common sources of error (e.g., assumptions about data)
  • Leveraging pre-built ML models as a service
  • Use of edge compute
  • Deploying an ML pipeline
  • Ingesting appropriate data
  • Machine learning terminology (e.g., features, labels, models, regression, classification, recommendation, supervised and unsupervised learning, evaluation metrics)
  • Distributed vs. single machine
  • ML APIs (e.g., Vision API, Speech API)
  • Impact of dependencies of machine learning models
  • Hardware accelerators (e.g., GPU, TPU)
  • Customizing ML APIs (e.g., AutoML Vision, Auto ML text)
  • Operationalizing machine learning models
  • Measuring, monitoring, and troubleshooting machine learning models
  • Continuous evaluation

Reference: https://cloud.google.com/certification/data-engineer

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Understanding functional and technical aspects of Google Professional Data Engineer Exam Building and operationalizing data processing systems

The following will be discussed here:

  • Batch and streaming
  • Building and operationalizing storage systems
  • Lifecycle management of data
  • Data cleansing
  • Building and operationalizing data processing systems
  • Validating a migration
  • Migrating from on-premises to cloud (Data Transfer Service, Transfer Appliance, Cloud Networking)
  • Integrating with new data sources
  • Provisioning resources
  • Data acquisition and import
  • Building and operationalizing pipelines
  • Awareness of current state and how to migrate a design to a future state
  • Adjusting pipelines
  • Building and operationalizing processing infrastructure
  • Transformation
  • Storage costs and performance
  • Testing and quality control
  • Monitoring pipelines
  • Effective use of managed services (Cloud Bigtable, Cloud Spanner, Cloud SQL, BigQuery, Cloud Storage, Cloud Datastore, Cloud Memorystore)

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Google Professional-Data-Engineer Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Building and operationalizing data processing systems24%- Data ingestion and integration
  • 1. Streaming ingestion (Pub/Sub, Dataflow)
    • 2. Batch ingestion pipelines (BigQuery, Cloud Storage)
      - Data processing and transformation
      • 1. ETL/ELT pipeline design
        • 2. Using Dataproc, Dataflow, and BigQuery SQL
          Topic 2: Ensuring solution quality28%- Reliability and performance
          • 1. Monitoring pipelines and workloads
            • 2. Fault tolerance and recovery strategies
              - Security and governance
              • 1. Data governance and compliance
                • 2. IAM and access control in GCP
                  Topic 3: Designing data processing systems22%- Batch and streaming data processing design
                  • 1. Event-driven vs batch architectures
                    • 2. Latency, throughput, and consistency trade-offs
                      - Data architecture and storage design
                      • 1. Choosing appropriate data storage solutions (relational, NoSQL, data warehouse)
                        • 2. Designing scalable and cost-effective data models
                          Topic 4: Operationalizing machine learning models26%- Model deployment and monitoring
                          • 1. Online vs batch prediction
                            • 2. Model monitoring and drift detection
                              - ML pipeline integration
                              • 1. Feature engineering and feature stores
                                • 2. Vertex AI pipeline deployment

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