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Google GCP-DE Exam Syllabus Topics:

Google Data Engineer Sample Questions:

1. You are developing a software application using Google's Dataflow SDK, and want to use conditional, for loops and other complex programming structures to create a branching pipeline. Which component will be used for the data processing operation?

A) Transform
B) PCollection
C) Pipeline
D) Sink API

2. What Dataflow concept determines when a Window's contents should be output based on certain criteria being met?

A) Sessions
B) Windows
C) Triggers
D) OutputCriteria

3. You have historical data covering the last three years in BigQuery and a data pipeline that delivers new data to BigQuery daily. You have noticed that when the Data Science team runs a query filtered on a date column and limited to 30-90 days of data, the query scans the entire table. You also noticed that your bill is increasing more quickly than you expected. You want to resolve the issue as cost-effectively as possible while maintaining the ability to conduct SQL queries. What should you do?

A) Recommend that the Data Science team use wildcards on the table name suffixes to select the data they need.
B) Partition the tables by a column containing a TIMESTAMP or DATE Type.
C) Write an Apache Beam pipeline that creates a BigQuery table per data
D) Recommend that the Data Science team export the table to a CSV file on Cloud Storage and use Cloud Datalab to explore the data by reading the files directly.
E) Modify your pipeline to maintain the last 30-90 days of data in one table and the longer history in a different table to minimize full table scans over the entire history.
F) Re-create the tables using DD

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

5. Your company maintains a hybrid deployment with GCP, where analytics are performed on your anonymized customer dat a. The data are imported to Cloud Storage from your data center through parallel uploads to a data transfer server running on GCP. Management informs you that the daily transfers take too long and have asked you to fix the problem. You want to maximize transfer speeds. Which action should you take?

A) Increase the CPU size on your server.
B) Increase your network bandwidth from Compute Engine to Cloud Storage.
C) Increase the size of the Google Persistent Disk on your server.
D) Increase your network bandwidth from your datacenter to GCP.

Solutions: