A company stores 1 PB of data in Cloud Storage. The data is accessed frequently for the first year, then accessed less than once a year for the next 9 years. The company has a predictable storage volume and wants to minimize total cost over the 10-year period. They are considering a lifecycle policy to transition the data to colder storage classes. Which strategy is most cost-effective?

Transition data to Coldline after 1 year, then to Archive after 5 years.

Transition data to Archive after 1 year.

Transition data to Nearline after 1 year, then to Archive after 5 years.

Store all data in Standard class for 10 years.

A data engineer needs to ensure that objects in a Cloud Storage bucket are transitioned to the Coldline storage class after 30 days. What is the most efficient way to achieve this?

Manually change the storage class of each object after 30 days

Set the bucket's default storage class to Coldline

Use a Cloud Function to move objects to a new bucket

Use a lifecycle policy to transition objects to Coldline after 30 days

Google CloudProfessional Data Engineer

Domain 3Objective 1

3.1 Selecting Storage Systems PROFESSIONAL-DATA-ENGINEER Practice Questions (Page 2)

Part of the Storing the data domain, which accounts for ~20% of the PROFESSIONAL-DATA-ENGINEER exam. Google Cloud does not publish an official question count, but from its 120-minute exam (~50–80 total, ~10–16 in this domain), expect 3–4 from this objective — we provide 35 practice questions to prepare you well beyond it. (estimate)

35questions here

7free pages

12concepts

~20%of the exam

Questions 6–10

6foundation · easy
An application experiences high latency when reading frequently accessed data from a database. The team wants to reduce latency by caching this data in memory. Which Google Cloud service should be used?
Select an answer first
7foundation · easy
Which Cloud Storage storage class is designed for data that is accessed less than once per year and has the lowest storage cost?
Select an answer first
8foundation · easy
A global application needs a relational database with strong consistency across multiple regions, supporting SQL queries and transactions. Which Google Cloud service is designed for this use case?
Select an answer first
9expert · hard
A company stores 1 PB of data in Cloud Storage. The data is accessed frequently for the first year, then accessed less than once a year for the next 9 years. The company has a predictable storage volume and wants to minimize total cost over the 10-year period. They are considering a lifecycle policy to transition the data to colder storage classes. Which strategy is most cost-effective?
Select an answer first
10foundation · easy
A data engineer needs to ensure that objects in a Cloud Storage bucket are transitioned to the Coldline storage class after 30 days. What is the most efficient way to achieve this?
Select an answer first

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3.1 Selecting Storage Systems PROFESSIONAL-DATA-ENGINEER Practice Questions (Page 2)

Questions 6–10

An application experiences high latency when reading frequently accessed data from a database. The team wants to reduce latency by caching this data in memory. Which Google Cloud service should be used?

Which Cloud Storage storage class is designed for data that is accessed less than once per year and has the lowest storage cost?

A global application needs a relational database with strong consistency across multiple regions, supporting SQL queries and transactions. Which Google Cloud service is designed for this use case?

A data engineer needs to ensure that objects in a Cloud Storage bucket are transitioned to the Coldline storage class after 30 days. What is the most efficient way to achieve this?

Keep studying — Storing the data