Git-based version control tools (for example, Git, AWS CodeCommit)
Relational and non-relational databases
Certificate management (for example, AWS Private Certificate Authority)
Automated software testing (for example, unit testing, mock testing)
The access of private resources in VPCs from Lambda code
Differences between logging, monitoring, and observability
Encryption at rest and in transit
Identity and access management
Branches and actions in the continuous integration and continuous delivery (CI/CD) workflow
Event-driven architecture
Differences between AWS managed policies and customer-managed policies
Service maps in AWS X-Ray