AWS - RDS and Relational Databases
A startup needs an RDS setup that balances cost efficiency with high availability and quick failover. Which pricing strategy best meets these needs?
A startup needs an RDS setup that balances cost efficiency with high availability and quick failover. Which pricing strategy best meets these needs?
hard📝 Application Q8 of 15
Step-by-Step Solution
Solution:
Step 1: Identify high availability needs
Multi-AZ deployment provides automatic failover and high availability.Step 2: Consider cost efficiency
Reserved instances reduce hourly costs compared to on-demand.Step 3: Backup retention
Setting backups to 7 days balances recovery options and storage cost.Step 4: Evaluate other options
Single-AZ lacks high availability; no backups risk data loss; disabling backups is not recommended.Final Answer:
Deploy Multi-AZ with reserved instances and set backup retention to 7 days -> Option BQuick Check:
Multi-AZ + reserved + backups = cost-effective HA [OK]
Quick Trick: Reserved Multi-AZ with backups balances cost and HA [OK]
Common Mistakes:
- Skipping backups to save cost
- Using on-demand for long-term cost savings
- Disabling Multi-AZ for high availability
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