Google GCP-DE : Data Engineer

  • Exam Code: GCP-DE
  • Exam Name: Data Engineer
  • Updated: Oct 04, 2026
  • Q & A: 77 Questions and Answers

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Google GCP-DE Exam Syllabus Topics:

SectionWeightObjectives
Building and operationalizing data processing systems30%- Data pipeline implementation
  • 1. Dataflow pipeline development
    • 2. Dataproc and Spark-based processing
      - Data ingestion and transformation
      • 1. Pub/Sub streaming ingestion
        • 2. ETL/ELT workflows
          Designing data processing systems20%- Data pipeline architecture design
          • 1. Batch vs streaming data processing selection
            • 2. Scalable data ingestion design
              - Storage and data modeling
              • 1. Data lake architecture on Google Cloud Storage
                • 2. Data warehouse design using BigQuery
                  Operationalizing data and ML pipelines30%- Pipeline automation and orchestration
                  • 1. Cloud Composer workflows
                    • 2. Scheduling and monitoring pipelines
                      - Monitoring and troubleshooting
                      • 1. Logging and observability
                        • 2. Performance optimization and debugging
                          Maintaining and optimizing data and ML solutions20%- Security and governance
                          • 1. IAM and access control
                            • 2. Data encryption and compliance
                              - Machine learning integration
                              • 1. Vertex AI integration for pipelines
                                • 2. BigQuery ML usage

                                  Google Data Engineer Sample Questions:

                                  Question #1

                                  When using Cloud Dataproc clusters, you can access the YARN web interface by configuring a browser to connect through a proxy.

                                  • A. HTTP
                                  • B. SOCKS
                                  • C. HTTPS
                                  • D. VPN
                                  Reveal Solution  Discussion  0

                                  Correct Answer: B  🗳️

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                                  Question #2

                                  MJTelco needs you to create a schema in Google Bigtable that will allow for the historical analysis of the last 2 years of records. Each record that comes in is sent every 15 minutes, and contains a unique identifier of the device and a data record. The most common query is for all the data for a given device for a given day. Which schema should you use?

                                  • A. Rowkey: device_idColumn data: date, data_point
                                  • B. Rowkey: data_pointColumn data: device_id, date
                                  • C. Rowkey: date#data_pointColumn data: device_id
                                  • D. Rowkey: date#device_idColumn data: data_point
                                  • E. Rowkey: dateColumn data: device_id, data_point
                                  Reveal Solution  Discussion  0

                                  Correct Answer: B  🗳️

                                  Question #3

                                  You are responsible for writing your company's ETL pipelines to run on an Apache Hadoop cluster. The pipeline will require some checkpointing and splitting pipelines. Which method should you use to write the pipelines?

                                  • A. Python using MapReduce
                                  • B. HiveQL using Hive
                                  • C. PigLatin using Pig
                                  • D. Java using MapReduce
                                  Reveal Solution  Discussion  0

                                  Correct Answer: A  🗳️

                                  Question #4

                                  If you're running a performance test that depends upon Cloud Bigtable, all the choices except one below are recommended steps. Which is NOT a recommended step to follow?

                                  • A. Use at least 300 GB of data.
                                  • B. Before you test, run a heavy pre-test for several minutes.
                                  • C. Run your test for at least 10 minutes.
                                  • D. Do not use a production instance.
                                  Reveal Solution  Discussion  0

                                  Correct Answer: D  🗳️

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                                  Question #5

                                  Which row keys are likely to cause a disproportionate number of reads and/or writes on a particular node in a Bigtable cluster (select 2 answers)?

                                  • A. A stock symbol followed by a timestamp
                                  • B. A sequential numeric ID
                                  • C. A timestamp followed by a stock symbol
                                  • D. A non-sequential numeric ID
                                  Reveal Solution  Discussion  0

                                  Correct Answer: B,C  🗳️

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