Cloud Digital Leader Google Cloud Products and Services Practice Question
An online retailer stores product images in a Cloud Storage bucket. Current access patterns: images uploaded once and read frequently for 30 days, then accessed rarely after 90 days, and must be retained for 7 years for compliance. Which storage class transition strategy minimizes cost while meeting requirements?
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
✓
Upload to Standard, lifecycle rule to Nearline at 30 days, then to Archive at 90 days
Start in Standard for frequent reads, then transition to Nearline after 30 days (lower cost for infrequent access), then to Archive after 90 days for long-term retention at lowest cost.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Upload to Nearline, lifecycle rule to Archive at 30 days
Why it's wrong here
Uploading directly to Nearline ignores the high initial access rate for new product images. Standard offers no retrieval charges and no minimum storage duration, making it cheaper for active data; additionally, moving to Archive after only 30 days triggers an early-deletion fee because Nearline has a 90-day minimum storage commitment, so this plan incurs unnecessary costs.
- ✓
Upload to Standard, lifecycle rule to Nearline at 30 days, then to Archive at 90 days
Why this is correct
This plan matches lifecycle costs to actual access patterns. Product images are updated and viewed frequently in the first month, making Standard the low-cost choice; between day 30 and day 90, access drops to occasional reporting or past-order lookups, so Nearline reduces storage price while keeping retrieval fees reasonable; after 90 days, images become archival and rarely accessed, and Archive's roughly $0.0012/GB pricing is the cheapest option. Lifecycle rules automate both transitions, minimizing operational overhead.
- ✗
Upload to Standard, lifecycle rule to Nearline at 30 days, then to Coldline at 90 days
Why it's wrong here
Sending data to Coldline at day 90 saves less than Archive and adds unnecessary retrieval fees. For data retained indefinitely, Archive undercuts Coldline on per-GB cost (about $0.0012 vs $0.004) and does not require frequent reads, while Coldline introduces a 90-day minimum storage charge and higher retrieval overhead. Coldline is suited for short-term cold data, not permanent archival storage.
- ✗
Upload to Standard, lifecycle rule to Coldline at 30 days, then to Archive at 90 days
Why it's wrong here
Switching to Coldline at day 30 is premature because product images still experience intermittent access from marketing campaigns or order verification. Coldline's retrieval fee ($0.02/GB) is higher than Nearline's ($0.01/GB), and its 90-day minimum storage duration means the additional move to Archive at day 90 provides no benefit—it only makes that first 60-day window more expensive if any image is pulled. Nearline better accommodates infrequent-but-possible access until the data truly becomes archival.
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
Compliance
Compliance is the process of ensuring that an organization follows laws, regulations, standards, and internal policies that apply to its operations and data handling.
Key term
Cloud storage
Cloud storage is a service that lets you save data on remote servers accessed over the internet instead of on your computer's hard drive.
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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.