Storage

Question 1

Cloud Storage

Answer 1

Flexible large file blob storage.

No indexing.

Used for:
Cloud based media (img, audio, video)
HDFS storage for Dataproc
BigQuery source data

Question 2

Cloud SQL & Spanner

Answer 2

No ops relational databases
Low latency, transactional

Use cases:
Any standard SQL (SQL < GBs, Spanner > TBs)
Transactional info e.g. inventory, user list, financial transactions

Question 3

Cloud Datastore

Answer 3

Non relational, structured
Transactional w/ low latency
Single index - slow write, fast read

Use cases:
Hierarchical data storage e.g. JSON, XML, Protocol buffer
Collect + query mobile data from apps
Low latency, multi-user apps e.g. mobile games

Question 4

Cloud Bigtable

Answer 4

Analytical, non relational, single key storage.

Native time series support. Low latency r/wr.

Use case:
Scaleable collection, storage & analysis of data
Time series data (e.g. from sensors), marketing data, financial data, IoT device data

Question 5

Cloud BigQuery

Answer 5

Analytical, denormalized database with SQL-like queries
Supports stream + batch data

Use cases:
Business analytics with serverless data store
Alternative to Hadoop with Hive
Mostly for Business Info analysis.