Cloud Computing Advanced

What is CDK (Cloud Development Kit)?

A software development framework for defining cloud infrastructure using familiar programming languages instead of YAML or JSON templates.

AWS CDK lets developers define cloud infrastructure using TypeScript, Python, Java, C#, or Go instead of writing CloudFormation YAML. Infrastructure becomes real code — with loops, conditions, abstractions, and testing.

CDK constructs represent cloud resources at different abstraction levels. L1 constructs map directly to CloudFormation. L2 constructs add sensible defaults. L3 constructs (patterns) represent complete architectures. CDK synthesizes to CloudFormation templates for deployment.

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A software-based emulation of a physical computer that runs its own operating system and applications.

Region and Availability Zone

Geographic locations where cloud providers operate data centers, with zones providing redundancy within a region.

SaaS (Software as a Service)

A cloud delivery model where software applications are hosted and managed by a provider and accessed by users over the internet.

IaaS (Infrastructure as a Service)

A cloud service model providing virtualized computing resources like servers, storage, and networking over the internet.

PaaS (Platform as a Service)

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

Lambda Function (Cloud)

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

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