Practice Exam 100 Questions And Correct

Google Cloud Professional Data Engineer Practice Exam 100 Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• Which GCP service is best suited for building machine learning models at

scale?

• Cloud Datastore
• AI Platform
• Cloud Spanner
• Cloud SQL

AI Platform provides managed services for training, tuning, and deploying ML models at scale on GCP.

• Which service should you use for real-time streaming data ingestion?
• Cloud Storage
• Cloud Pub/Sub
• BigQuery 1 / 4

• Dataflow

Cloud Pub/Sub enables real-time ingestion of streaming data through publish-subscribe messaging.

• You need to store massive amounts of structured data with strong

consistency and high availability globally. Which service should you choose?

• Cloud SQL
• BigQuery
• Cloud Spanner
• Firestore

Cloud Spanner is designed for globally distributed relational databases with strong consistency and scalability.

• You want to analyze petabytes of data using standard SQL queries.

Which GCP service fits best?

• Cloud Datastore
• Cloud SQL
• BigQuery
• Dataflow

BigQuery is GCP’s serverless, scalable data warehouse optimized for analytical SQL queries. 2 / 4

• What is the default storage type for BigQuery tables?
• Cloud Storage
• Cloud SQL
• Colossus (GCP’s distributed storage layer)

D. HDFS

BigQuery uses Colossus as its underlying distributed storage system for durability and scalability.

• You need to transform streaming data before analysis. Which tool

should you use?

• BigQuery
• Dataprep
• Dataflow
• Cloud Composer

Dataflow processes both batch and streaming data using Apache Beam pipelines.

• Which service enables orchestration of data pipelines in GCP?
• Dataflow
• Dataproc
• Cloud Composer 3 / 4

• BigQuery

Cloud Composer (built on Apache Airflow) manages and schedules complex data workflows.

• You need to store semi-structured JSON data and perform key-based

lookups. Which service fits best?

• Cloud SQL
• Firestore
• BigQuery
• Dataproc

Firestore is a NoSQL document database optimized for JSON-like data and indexed key-based queries.

• Which of the following supports both batch and streaming data

processing?

• Dataproc
• Dataflow
• BigQuery
• Pub/Sub

Dataflow supports both batch and streaming through Apache Beam’s unified model.

• / 4