Cloud Computing Beginner

What is SLA (Service Level Agreement)?

A formal agreement between a service provider and customer defining guaranteed levels of service availability and performance.

SLAs specify measurable metrics like uptime percentage (99.9% = "three nines" = 8.76 hours downtime/year), response times, support availability, and remedies for violations (typically service credits).

Related concepts include SLO (Service Level Objective — internal target) and SLI (Service Level Indicator — actual measurement). Understanding SLAs is crucial for architecture decisions — achieving 99.99% requires fundamentally different design than 99.9%.

Related Terms

Identity and Access Management services that control who can access cloud resources and what actions they can perform.

Lambda Function (Cloud)

An AWS serverless compute service that runs code in response to events without provisioning or managing servers.

PaaS (Platform as a Service)

A cloud service model that provides a platform for developers to build, deploy, and manage applications without managing infrastructure.

VPC (Virtual Private Cloud)

An isolated virtual network within a cloud provider where you can launch resources with full control over IP addressing, routing, and security.

An AWS service that provisions and manages cloud resources using declarative JSON or YAML templates.

Cloud Migration

The process of moving applications, data, and workloads from on-premises infrastructure to cloud computing environments.

View All Cloud Computing Terms →