Chapter 11: Planning Storage in the Cloud
- D. Once a bucket is created as either regional or multiregional, it cannot be changed to the other, so option D is correct. Nearline to coldline and regional to nearline are both allowed, as is multiregional to coldline.
- C. The goal is to reduce cost, so you would want to use the least costly storage option. Coldline has the lowest per-gigabyte charge at $0.07/GB/month, so option C is correct. Nearline is the next lowest followed by regional. Multiregional has the highest per-gigabyte charge. Both nearline and coldline have access charges, but those are not considered in this question.
- B. Bigtable is a wide-column database that can ingest large volumes of data consistently, so option B is correct. It also supports low-millisecond latency, making it a good choice for supporting querying. Cloud Spanner is a global relational database that is not suitable for high-speed ingestion of large volumes of data. Datastore is an object data model...
