Flashcard: Introduction to Cloud Computing — 20 carte

Cloud Computing — definition?

On-demand delivery of IT resources via the internet.

Infrastructure as software — role?

Manages resources through programmable, software interfaces.

Traditional vs Cloud — difference?

Traditional relies on physical hardware; cloud is flexible, software-managed.

Cloud service models — types?

IaaS, PaaS, SaaS.

Deployment strategies — examples?

Cloud, hybrid, on-premises.

AWS and traditional IT — relation?

AWS offers virtualized, scalable resources replacing physical hardware.

Advantages of cloud — key?

Cost efficiency, scalability, speed, global reach.

Cost benefits — how?

Pay-as-you-go model reduces upfront CapEx.

Scalability benefits — how?

Automatic, elastic resource adjustment based on demand.

Introduction to AWS — what?

Leading cloud platform with global infrastructure and services.

Data centers — location?

Owned by providers, distributed worldwide.

Elastic scaling — mechanism?

Automatically adjusts resources to match demand.

Traditional hardware cycle — length?

Long, involving procurement, installation, and maintenance.

Cloud provisioning time?

Minutes, much faster than weeks or months.

Cloud deployment — benefit?

Rapid, global application deployment.

AWS security groups — function?

Control inbound/outbound traffic for EC2 instances.

Network ACLs — role?

Filter traffic at subnet level in VPCs.

AWS pay-as-you-go — model?

Billing based on actual resource usage.

Cloud vs CapEx/OpEx — difference?

Cloud shifts costs from CapEx to flexible OpEx.

Global AWS Regions — purpose?

Enable low-latency, worldwide deployment of applications.