AWS Certified Solutions Architect Associate SAA-C03 Practice Question
A company has deployed a critical database-backed web application in the Northern Virginia region. The operational requirements dictate that the application must be able to recover from a region-wide service disruption and be operational within 4 hours, with data loss not exceeding 15 minutes. What disaster recovery approach would effectively meet these operational objectives?
You selected this option
Maintain a synchronous standby replica within the same geographical area to ensure instant failover without data loss.
You selected this option
Configure multi-regional deployment with data replication to a secondary region and establish a system for automated failover.
You selected this option
Create a scaled-down version of the environment in a secondary region, backed up by snapshots on a daily schedule.
You selected this option
Regularly schedule snapshots of the database to a durable storage service with cross-region copying enabled.
Deploying database instances across multiple regions with a mechanism in place for data replication caters to both the RTO and RPO objectives. The chosen configuration ensures that data is replicated with minimal lag, and it allows for quick failover should the need arise, which is crucial for meeting a 4-hour operational recovery and 15-minute data recovery criteria. A strategy restricted to the same region does not protect against regional disruptions. Periodic backups without continuous replication are likely to exceed the 15-minute data recovery requirement, especially if backups are not frequent enough. A basic disaster recovery setup like the pilot light does not provide the necessary continuous replication or quick enough failover to meet the stringent objectives outlined.
Ask Bash
Bash is our AI bot, trained to help you pass your exam. AI Generated Content may display inaccurate information, always double-check anything important.
What is multi-regional deployment?
Open an interactive chat with Bash
What are RTO and RPO in disaster recovery?
Open an interactive chat with Bash
How does data replication work in disaster recovery?