SOA-C02 · Question #586
A SysOps administrator needs to configure a caching layer for a read-heavy application that uses an Amazon RDS for PostgreSQL database. The application exists across three AWS Regions. Read and…
The correct answer is A. Set up an Amazon ElastiCache for Redis global datastore. Include a read and write cluster in the. See the full explanation below for the reasoning.
Question
A SysOps administrator needs to configure a caching layer for a read-heavy application that uses an Amazon RDS for PostgreSQL database. The application exists across three AWS Regions. Read and write activities occur in the primary Region. In the two secondary Regions, read-only activity occurs on RDS for PostgreSQL cross-Region read replicas. The cache in each Region must consist of the same data to provide a consistent user experience across Regions. Which solution for the caching layer will meet these requirements?
Options
- ASet up an Amazon ElastiCache for Redis global datastore. Include a read and write cluster in the
- BSet up an Amazon ElastiCache for Memcached global database. Include a read and write cluster
- CSet up query caching on the RDS for PostgreSQL database in the primary Region. Configure
- DSet up an Amazon ElastiCache for Memeached cluster with cluster mode enabled in all three
How the community answered
(26 responses)- A73% (19)
- B4% (1)
- C15% (4)
- D8% (2)
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