A Database Is on an Amazon RDS MySQL 5

question 434

Multiple Choice

A database is on an Amazon RDS MySQL 5.6 Multi-AZ DB instance that experiences highly dynamic reads. Application developers notice a significant slowdown when testing read performance from a secondary AWS Region. The developers want a solution that provides less than 1 second of read replication latency. What should the solutions architect recommend?

• A) Install MySQL on Amazon EC2 in the secondary Region.
• B) Migrate the database to Amazon Aurora with cross-Region replicas.
• C) Create another RDS for MySQL read replica in the secondary Region.
• D) Implement Amazon ElastiCache to improve database query performance.

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Definitions:

Direct Labor-hours

The total time that production workers spend working on products or production processes, used as a base for applying manufacturing overhead.

Variable Overhead Efficiency Variance

The difference between the actual variable overhead incurred and the standard cost of variable overhead expected for the actual production level.

Variable Manufacturing Overhead

Costs of manufacturing that vary with the level of production output, such as utilities and some wages.

Materials Price Variance

The variance between the real expense of materials and their anticipated (or standard) cost.