RDS — Complete Guide
RDS — Complete Guide: free step-by-step lesson with examples, common mistakes, and interview tips — part of AWS Cloud Tutorial on Toolliyo Academy.
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AWS Cloud Tutorial · Lesson 35 of 100
RDS
Core services → Projects
Core services · 1 — AWS basics · ~6 min · AWS — Storage & Databases
What is this?
Amazon RDS manages relational databases (PostgreSQL, MySQL, SQL Server). AWS handles backups, patching, and Multi-AZ failover.
Why should you care?
AwsVerse core banking ledger runs on Multi-AZ PostgreSQL RDS with automated backups.
See it live — copy this example
Run in AWS CloudShell / local AWS CLI v2, or follow the matching steps in the AWS Console (Free Tier).
aws rds create-db-instance \
--db-instance-identifier awsverse-ledger \
--db-instance-class db.t3.micro \
--engine postgres \
--master-username dbadmin \
--master-user-password 'ChangeMeLabOnly!' \
--allocated-storage 20 \
--vpc-security-group-ids sg-rds \
--no-publicly-accessibleWhat happened?
- Creates a private PostgreSQL instance on Free Tier-eligible class.
- Store password in Secrets Manager in real deployments.
Practice next
- Create DB subnet group in two AZs.
- Launch db.t3.micro PostgreSQL (Free Tier).
- Connect from EC2 in same VPC; delete after lab.
- Enable Performance Insights for 7 days.
- Create read replica in same region.
Remember
RDS = managed SQL. Multi-AZ for HA failover. Automated backups and snapshots.
AwsVerse ledger DB
Payments need ACID and point-in-time recovery.
Outcome: RDS PITR restores to five minutes before bad deploy.
Interview prep for this lesson
Practice these questions aloud after reading—each links to a full structured answer.
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