SAA-C03 S3 Intelligent-Tiering Practice Question
A risk simulation workload generates analytics files that are accessed unpredictably. Some files become hot again months later. The team wants automatic storage cost optimisation without retrieval delays. What should be used? The design must avoid adding custom operational scripts.
⚠ Common exam trap
Many candidates choose S3 Glacier Flexible Retrieval because it is cheaper for cold data, but they overlook the 'no retrieval delays' requirement, as Glacier Flexible Retrieval has a retrieval time of minutes to hours, making it unsuitable for files that become hot again unpredictably.
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
✓
S3 Intelligent-Tiering
S3 Intelligent-Tiering automatically moves objects between access tiers (frequent, infrequent, and archive instant access) based on changing access patterns, with no retrieval delays for hot objects and no operational overhead. This matches the unpredictable access pattern where files become hot again months later, as Intelligent-Tiering monitors access at the object level and adjusts storage class without manual intervention or custom scripts.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Manual monthly review and object copying
Why it's wrong here
Manual review and copying cannot react to unpredictable access patterns, so hot files stay in cold tiers and retrieval delays persist; it also adds the custom operational effort the design forbids. Lifecycle policies with infrequent-access or archive tiers automate transitions, which is what this scenario needs.
- ✗
S3 Glacier Flexible Retrieval for all files
Why it's wrong here
Glacier Flexible Retrieval imposes retrieval times of minutes to hours, violating the no-delay requirement, and applies one class to all objects rather than optimising automatically. It is tempting for cheap archival of cold data, and would be correct where files are rarely accessed and retrieval latency is acceptable.
- ✓
S3 Intelligent-Tiering
Why this is correct
S3 Intelligent-Tiering monitors access patterns and automatically moves objects between frequent and infrequent access tiers, with no retrieval fees or delays. This satisfies the stem's unpredictable-access and no-custom-scripts constraints, unlike lifecycle policies that require manual rule design.
- ✗
EFS One Zone for analytics files
Why it's wrong here
EFS One Zone is a file system with fixed storage classes and no lifecycle transitions, so it cannot automatically move unpredictably accessed files to cheaper tiers without scripts. It is tempting for shared POSIX file access, and would be correct where workloads need concurrent file semantics rather than object 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 |
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SAA-C03 practice question is part of Courseiva's free Amazon Web Services 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 SAA-C03 exam.