Cloud Digital Leader Google Cloud Products and Services Practice Question
A company wants to store archival data that is accessed less than once a year and needs the lowest storage cost. Which TWO Cloud Storage classes are most cost-effective for this use case?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Archive
Archive storage has the lowest cost for data accessed less than once a year. Coldline is for data accessed every 90 days. Standard and Nearline are more expensive. Archive and Coldline are both lower cost than Standard, but Archive is cheapest. The question asks for TWO, so Archive and Coldline are both cold storage classes. However, Archive is the best for annual access. Coldline is for quarterly access but still cheaper than Standard. The correct TWO are Archive and Coldline, as they are the cold storage classes.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Regional
Why it's wrong here
Regional is not a storage class; it is a location/redundancy type in Google Cloud Storage that controls where data is physically stored (e.g., in a single region vs. multiple regions). Storage classes, in contrast, define the cost and access frequency trade-offs. Since the question asks for a storage class, Regional is ineligible regardless of its redundancy benefits.
- ✗
Nearline
Why it's wrong here
Nearline is a storage class designed for data accessed less than once a month, making it suitable for backups or infrequent access. However, archival data that is accessed less than once a year has more extreme cost and access requirements. Nearline has higher storage cost than Coldline and Archive, and imposes a 30-day minimum storage duration, so it is not the optimal choice for this scenario.
- ✗
Standard
Why it's wrong here
Standard is the default storage class optimized for frequently accessed, hot data with no minimum storage duration and low retrieval fees. It offers the highest storage cost among all classes, which makes it inappropriate for archival data that is rarely accessed. Using Standard for this use case would incur unnecessary expense without any lifecycle benefit.
- ✓
Archive
Why this is correct
Archive is the correct answer because it is Google Cloud's lowest-cost storage class, explicitly intended for data accessed less than once a year. It has the cheapest storage price but charges high retrieval fees and requires a minimum storage duration of 365 days. This matches the described access pattern of archival data, making it the most cost-effective option.
- ✓
Coldline
Why this is correct
Coldline is a storage class for data that may be accessed at most once every 90 days, offering lower cost than Standard and Nearline but higher cost than Archive. Since the data in question is accessed less than once a year, Coldline's storage price is still higher than necessary, and its 90-day minimum storage duration adds restrictions. Therefore, while Coldline is a valid infrequent-access class, Archive is better suited for true archival storage.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
Go deeper
Related to this question
Learn chapter
Cloud Digital Transformation
Key term
Data
Data is raw, unprocessed information, like numbers, words, or measurements, that can be stored, processed, and analyzed by computers.
Key term
Cloud Storage classes
Cloud Storage classes are categories of data storage services offered by cloud providers that differ in performance, availability, cost, and access frequency, allowing users to optimize costs based on how often data is accessed.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This GCDL practice question is part of Courseiva's free Google Cloud certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the GCDL exam.