Practice Test 2 | Google Cloud Certified Professional Data Engineer | Dumps | Mock Test
Data team is looking for a database system which is highly available and supports atomic transactions. Database should have a flexible but semi-structured schema and supports querying using SQL-like language. Solution should be fully managed with no planned downtime.
Which of the following is the best choice for this scenario?
A. Cloud SQL
B. Cloud Spanner
C. BigTable
D. Datastore
Answer: D.
Cloud Datastore is a highly-scalable NoSQL database for your applications. Cloud Datastore automatically handles sharding and replication, providing you with a highly available and durable database that scales automatically to handle your applications’ load. Cloud Datastore provides a myriad of capabilities such as ACID transactions, SQL-like queries and indexes.
Answer A is incorrect: Cloud SQL is a relational database. The scenario requires a flexible semi- structured schema and relational databases are strictly-structured.
Answer B is incorrect: Cloud Spanner is a relational database supports multi-regional and continental scaling-out. The scenario requires a flexible semi-structured schema and relational databases are strictly-structured.
Answer C is incorrect: BigTable does not have a semi-structured schema.
Source(s):
Cloud Datastore: https://cloud.google.com/datastore/
Comments are closed, but trackbacks and pingbacks are open.