Google Associate Cloud EngineerEnsuring successful operation of a cloud solutionEasy
A data analytics team needs to store petabytes of historical sensor data for long-term archival and occasional batch processing. The data is rarely accessed but must be highly durable and available when needed. Cost optimization for storage is a primary concern. Which Cloud Storage class should be recommended?
- AArchive storage
- BColdline storage
- CStandard storage
- DNearline storage
Show answer & explanationAnswer & explanation
Correct answer: A. Archive storage
Archive storage is designed for long-term data archival with very infrequent access, offering the lowest storage cost. While access costs are higher, the overall cost remains optimal for petabytes of rarely accessed data.
Why the other options are wrong
- B. Coldline storage is for data accessed less than once a quarter, which is better than Nearline but still not as cost-effective as Archive for true long-term archival.
- C. Standard storage is for frequently accessed data and would be significantly more expensive for petabytes of archival data.
- D. Nearline storage is for data accessed less than once a month, which is still too frequent and costly for long-term archival with very infrequent access.
Cloud Storage Archive
A Google Cloud Storage class optimized for long-term data archiving with very infrequent access (e.g., once a year or less).
- Lowest cost for storing data.
- Highest cost for data retrieval and operations.
- Minimum storage duration of 365 days.
Memory trick: Storage Tiers: Standard, Near, Cold, Archive - SNCA.