CLF-C02 cheat sheet

Exam at a glance

Domain weightings

How much of the exam each domain covers. Spend your study time in proportion — the heavier the domain, the more questions you'll see.

Key terms

Availability Zone

An Availability Zone (AZ) is one or more discrete data centers with redundant power, networking, and connectivity in an AWS Region. Each AZ is isolated from failures in other zones within the same region, providing high availability and fault tolerance for applications deployed across multiple AZs.

Region

A Region is a physical geographic location consisting of multiple, isolated, and physically separate Availability Zones within a specific area. AWS operates multiple regions globally, allowing customers to deploy resources close to end users for reduced latency and data residency compliance.

IAM

AWS Identity and Access Management (IAM) is a web service that enables secure control over access to AWS resources. IAM allows creation and management of users, groups, roles, and policies to define who can access specific AWS services and resources.

S3

Amazon Simple Storage Service (S3) is an object storage service offering industry-leading scalability, data availability, security, and performance. S3 stores data as objects within buckets and provides features like versioning, lifecycle policies, and various storage classes for cost optimization.

EC2

Amazon Elastic Compute Cloud (EC2) is a web service providing resizable compute capacity in the cloud. EC2 allows users to launch virtual servers (instances) with various configurations of CPU, memory, storage, and networking to meet different application requirements.

VPC

Amazon Virtual Private Cloud (VPC) is a logically isolated section of the AWS cloud where resources can be launched in a defined virtual network. VPC provides complete control over the network environment including IP address ranges, subnets, route tables, and network gateways.

CloudWatch

Amazon CloudWatch is a monitoring and observability service that collects and tracks metrics, logs, and events from AWS resources and applications. CloudWatch enables automated responses to operational changes through alarms and provides insights for optimizing resource utilization and application performance.

Lambda

AWS Lambda is a serverless compute service that runs code in response to events without provisioning or managing servers. Lambda automatically scales applications by running code in response to triggers from other AWS services, HTTP requests, or custom events.

RDS

Amazon Relational Database Service (RDS) is a managed database service that simplifies setup, operation, and scaling of relational databases in the cloud. RDS supports multiple database engines including MySQL, PostgreSQL, Oracle, SQL Server, and Amazon Aurora, handling routine tasks like backups, patching, and replication.

Elasticity

Elasticity is the ability to automatically scale computing resources up or down based on demand. This cloud computing characteristic allows systems to dynamically acquire resources when needed and release them when demand decreases, optimizing cost and performance.