Design Resilient Architectures
This domain carries 26% of the SAA-C03 exam. Practise it with original questions that explain every answer option.
- Certification
- SAA-C03
- Exam weight
- 26%
- Subdomains
- 2
- Objectives
- 24
What this domain covers
Example question from this domain
A company needs a consistent, quickly deployable replica of its production infrastructure in a separate DR Region and AWS account. Using Amazon CloudFormation StackSets, select TWO ways it can support this DR objective.
- Deploy identical compute, networking, and storage resources for blockchain nodes and smart contract environments across target DR regions and accounts.
- Provide real-time, block-level replication of ledger data between primary storage and DR storage volumes.
- Enable centralized management and consistent updates of DR stacks across recovery regions and accounts from one CloudFormation template.
- Orchestrate automatic failover of smart contract execution across blockchain networks during a regional outage.
Deploy identical compute, networking, and storage resources for blockchain nodes and smart contract environments across target DR regions and accounts. — CloudFormation StackSets deploy the same set of AWS resources to multiple target accounts and regions. That fits a DR replica of compute, networking, and storage, keeping the recovery environment consistent with production.
Provide real-time, block-level replication of ledger data between primary storage and DR storage volumes. — StackSets deploy infrastructure, but they do not perform block-level or real-time data replication. Replication is handled by services such as EBS snapshots, S3 cross-Region replication, or database replication features.
Enable centralized management and consistent updates of DR stacks across recovery regions and accounts from one CloudFormation template. — A single CloudFormation template can be used to deploy and update DR stacks across all specified accounts and Regions. This reduces drift and keeps the recovery environment aligned with production.
Orchestrate automatic failover of smart contract execution across blockchain networks during a regional outage. — StackSets provision infrastructure resources only. Automatic failover of application behavior requires other services or application logic, such as Route 53, load balancers, or app-specific failover mechanisms.
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