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Google Professional Data Engineer (GCP) Practice Exam 2022

Get Certified with our Google ACE Practice Tests w/ Complete Explanations, References, and Cheat Sheets

Google Professional Data Engineer (GCP) Practice Exam 2022

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The Professional Cloud Certification is the second level (GCP) certification that helps in developing and, after that, testing the knowledge and skills of the attendees in advanced architectural design. The various implementation skills based on the job role are enhanced during the certification process of learning, and the final examination helps in identifying the level of gains and skills that have been gained by the professionals and students during the course period.


Course Structure for Google Cloud Certified - Professional Data Engineer

Certified Professional Data Engineer analyzes data to gain insight into business outcomes, builds statistical models to support decision-making, and creates machine learning models to automate and simplify key business processes. The Google Cloud Certified - Professional Data Engineer exam assesses a candidates ability to -


1. Designing data processing systems

1.1 Selecting the appropriate storage technologies. Considerations include:

  • Mapping storage systems to business requirements

  • Data modeling

  • Tradeoffs involving latency, throughput, transactions

  • Distributed systems

  • Schema design


1.2 Designing data pipelines. Considerations include:

  • Data publishing and visualization (e.g., BigQuery)

  • Batch and streaming data (e.g., Cloud Dataflow, Cloud Dataproc, Apache Beam, Apache Spark and Hadoop ecosystem, Cloud Pub/Sub, Apache Kafka)

  • Online (interactive) vs. batch predictions

  • Job automation and orchestration (e.g., Cloud Composer)


1.3 Designing a data processing solution. Considerations include:

  • Choice of infrastructure

  • System availability and fault tolerance

  • Use of distributed systems

  • Capacity planning

  • Hybrid cloud and edge computing

  • Architecture options (e.g., message brokers, message queues, middleware, service-oriented architecture, serverless functions)

  • At least once, in-order, and exactly once, etc., event processing


1.4 Migrating data warehousing and data processing. Considerations include:

  • Awareness of current state and how to migrate a design to a future state

  • Migrating from on-premises to cloud (Data Transfer Service, Transfer Appliance, Cloud Networking)

  • Validating a migration

2. Building and operationalizing data processing systems

2.1 Building and operationalizing storage systems. Considerations include:

  • Effective use of managed services (Cloud Bigtable, Cloud Spanner, Cloud SQL, BigQuery, Cloud Storage, Cloud Datastore, Cloud Memorystore)

  • Storage costs and performance

  • Lifecycle management of data


2.2 Building and operationalizing pipelines. Considerations include:

  • Data cleansing

  • Batch and streaming

  • Transformation

  • Data acquisition and import

  • Integrating with new data sources


2.3 Building and operationalizing processing infrastructure. Considerations include:

  • Provisioning resources

  • Monitoring pipelines

  • Adjusting pipelines

  • Testing and quality control


3. Operationalizing machine learning models

3.1 Leveraging pre-built ML models as a service. Considerations include:

  • ML APIs (e.g., Vision API, Speech API)

  • Customizing ML APIs (e.g., AutoML Vision, Auto ML text)

  • Conversational experiences (e.g., Dialogflow)


3.2 Deploying an ML pipeline. Considerations include:

  • Ingesting appropriate data

  • Retraining of machine learning models (Cloud Machine Learning Engine, BigQuery ML, Kubeflow, Spark ML)

  • Continuous evaluation


3.3 Choosing the appropriate training and serving infrastructure. Considerations include:

  • Distributed vs. single machine

  • Use of edge compute

  • Hardware accelerators (e.g., GPU, TPU)


3.4 Measuring, monitoring, and troubleshooting machine learning models. Considerations include:

  • Machine learning terminology (e.g., features, labels, models, regression, classification, recommendation, supervised and unsupervised learning, evaluation metrics)

  • Impact of dependencies of machine learning models

  • Common sources of error (e.g., assumptions about data)


4. Ensuring solution quality

4.1 Designing for security and compliance. Considerations include:

  • Identity and access management (e.g., Cloud IAM)

  • Data security (encryption, key management)

  • Ensuring privacy (e.g., Data Loss Prevention API)

  • Legal compliance (e.g., Health Insurance Portability and Accountability Act (HIPAA), Children's Online Privacy Protection Act (COPPA), FedRAMP, General Data Protection Regulation (GDPR))


4.2 Ensuring scalability and efficiency. Considerations include:

  • Building and running test suites

  • Pipeline monitoring (e.g., Stackdriver)

  • Assessing, troubleshooting, and improving data representations and data processing infrastructure

  • Resizing and autoscaling resources


4.3 Ensuring reliability and fidelity. Considerations include:

  • Performing data preparation and quality control (e.g., Cloud Dataprep)

  • Verification and monitoring

  • Planning, executing, and stress testing data recovery (fault tolerance, rerunning failed jobs, performing retrospective re-analysis)

  • Choosing between ACID, idempotent, eventually consistent requirements


4.4 Ensuring flexibility and portability. Considerations include:

  • Mapping to current and future business requirements

  • Designing for data and application portability (e.g., multi-cloud, data residency requirements)

  • Data staging, cataloging, and discovery

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