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Google GCP-DE Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Managing and optimizing solutions | 20%-25% | - Reliability and scalability
|
| Topic 2: Designing data processing systems | 22%-27% | - Designing for data ingestion
|
| Topic 3: Ensuring solution quality | 20%-25% | - Data quality management
|
| Topic 4: Building and operationalizing data processing systems | 28%-33% | - Building data processing systems
|
Google Data Engineer Sample Questions:
You have developed three data processing jobs. One executes a Cloud Dataflow pipeline that transforms data uploaded to Cloud Storage and writes results to BigQuery. The second ingests data from on-premises servers and uploads it to Cloud Storage. The third is a Cloud Dataflow pipeline that gets information from third-party data providers and uploads the information to Cloud Storage. You need to be able to schedule and monitor the execution of these three workflows and manually execute them when needed. What should you do?
- A. Set up cron jobs in a Compute Engine instance to schedule and monitor the pipelines using GCP API calls.
- B. Create a Direct Acyclic Graph in Cloud Composer to schedule and monitor the jobs.
- C. Use Stackdriver Monitoring and set up an alert with a Webhook notification to trigger the jobs.
- D. Develop an App Engine application to schedule and request the status of the jobs using GCP API calls.
Correct Answer: A 🗳️
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: date#device_idColumn data: data_point
- B. Rowkey: dateColumn data: device_id, data_point
- C. Rowkey: data_pointColumn data: device_id, date
- D. Rowkey: date#data_pointColumn data: device_id
- E. Rowkey: device_idColumn data: date, data_point
Correct Answer: C 🗳️
What are two methods that can be used to denormalize tables in BigQuery?
- A. 1) Join tables into one table; 2) Use nested repeated fields
- B. 1) Split table into multiple tables; 2) Use a partitioned table
- C. 1) Use nested repeated fields; 2) Use a partitioned table
- D. 1) Use a partitioned table; 2) Join tables into one table
Correct Answer: A 🗳️
Explanation: Only visible for Exam4Free members. You can sign-up / login (it's free).
Which of the following statements is NOT true regarding Bigtable access roles?
- A. To give a user access to only one table in a project, you must configure access through your application.
- B. You can configure access control only at the project level.
- C. To give a user access to only one table in a project, grant the user the Bigtable Editor role for that table.
- D. Using IAM roles, you cannot give a user access to only one table in a project, rather than all tables in a project.
Correct Answer: C 🗳️
Explanation: Only visible for Exam4Free members. You can sign-up / login (it's free).
Which of these sources can you not load data into BigQuery from?
- A. Google Cloud Storage
- B. Google Drive
- C. File upload
- D. Google Cloud SQL
Correct Answer: D 🗳️
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