AWS Certified Solutions Architect - Professional SAP-C02 — Topic 1 Question 240

Question

A solutions architect needs to define a reference architecture for a solution for three-tier applications with web. application, and NoSQL data layers. The reference architecture must meet the following requirements: • High availability within an AWS Region • Able to fail over in 1 minute to another AWS Region for disaster recovery • Provide the most efficient solution while minimizing the impact on the user experience Which combination of steps will meet these requirements? (Choose three.)

Accepted Answer

Correct answer: B, C, E. The correct answer is B, C, E. Option B: Use an Amazon Route 53 failover routing policy for failover from the primary Region to the disaster recovery Region. Set Time to Live (TTL) to 30 seconds. Option C: Use a global table within Amazon DynamoDB so data can be accessed in the two selected Regions. Option E: Implement a hot standby model using Auto Scaling groups for the web and application layers across multiple Availability Zones in the Regions. Use zonal Reserved Instances for the minimum number of servers and On-Deman... Auto Scaling adjusts capacity automatically to match demand, improving availability and cost efficiency. Reserved Instances lower cost for steady-state, predictable long-running workloads. Amazon DynamoDB is a fully managed, serverless NoSQL database with single-digit millisecond latency and automatic scaling. By spanning multiple Availability Zones / adding redundancy, this option provides the high availability and resilience required.

AWS Certified Solutions Architect - Professional SAP-C02 — Question 240