Cloud Computing 101: How the Internet Runs on Rented Computers

By the end

What you'll build

• Explain in plain language what the cloud physically is and trace a web request from a device to a datacenter and back
• Distinguish virtualization, containers and serverless as rungs of an abstraction ladder
• Place any cloud service on the IaaS, PaaS or SaaS tier by asking how much of the stack you still manage
• Choose among public, private, hybrid and multi-cloud deployment models for a given situation
• Reason about regions and Availability Zones for latency, data residency (India's DPDP Act, 2023) and high availability
• Apply the shared responsibility model and identify customer-side security failures such as public storage buckets
• Think in pay-per-use terms and compute TCO, on-demand-vs-reserved break-even and the causes of a surprise bill using Python calculators
• Practice safely in genuinely free, no-credit-card cloud environments and verify your own hands-on evidence
• Read dated Indian cloud market and salary figures honestly, without treating any of them as a promise
• Choose a cloud provider and a next learning step deliberately, understanding that Karka is prep and evidence — not the certification itself

Curriculum

What's inside

6 modules · 36 lessons

1. 01

   What 'The Cloud' Actually Is

   7 lessons
   • Start Here: What Cloud Computing 101 Is (and Is Not)
   • The Cloud Is Someone Else's Computer: The Physical Truth
   • What Happens When You Open a Website: Your Request's Journey
   • Virtualization: How One Big Server Becomes Many Small Ones
   • Vocabulary Deck: The Physical Cloudflashcard sr
   • + 2 more lessons
2. 02

   Service Models and Deployment Models

   7 lessons
   • IaaS, PaaS, SaaS: The Pizza-as-a-Service Model
   • Who Manages What: The On-Prem-to-SaaS Responsibility Ladder
   • Cost Calculator: On-Prem vs Cloud 3-Year TCOpython lab
   • Public, Private, Hybrid and Multi-Cloud: The Four Deployment Models
   • Vocabulary Deck: Service and Deployment Modelsflashcard sr
   • + 2 more lessons
3. 03

   Regions, Zones and Why Mumbai Matters

   5 lessons
   • Regions and Availability Zones: The Geography of the Cloud
   • Why a Mumbai Region Matters: Latency, Law and Data Residency
   • Latency Calculator: The Speed-of-Light Tax on Region Choicepython lab
   • Vocabulary Deck: Global Infrastructureflashcard sr
   • Check: Regions, Zones and Data Residencyquiz
4. 04

   The Two Mental Models: Responsibility and Cost

   6 lessons
   • The Shared Responsibility Model: Security OF vs IN the Cloud
   • Pay-Per-Use: Renting by the Second
   • Cost Calculator: On-Demand vs Reserved Break-Evenpython lab
   • Error Analysis: Anatomy of a Surprise Rs 80,000 Cloud Bill
   • Check: Responsibility and Costquiz
   • + 1 more lesson
5. 05

   Try It Yourself: Free, No Surprise Bills

   5 lessons
   • How to Practice Cloud for Free Without a Credit Card
   • Guided Task: Price a Workload in a Cloud Pricing Calculator
   • Evidence Check: Your Pricing Calculator Runquiz
   • Guided Task: Explore a Free In-Browser Sandbox
   • Evidence Check: Your Sandbox Sessionquiz
6. 06

   Your Cloud Career Map for India

   6 lessons
   • The Cloud Job Landscape in India: Roles and What They Do
   • The Certification Ladder: CLF-C02, SAA-C03, AZ-900 - and Where Karka Fits
   • Salary-Band Explorer: Reading Dated Market Figures Honestlypython lab
   • Vocabulary Deck: Roles, Certs and the Road Aheadflashcard sr
   • Final Check: Are You Cloud-Literate?quiz
   • + 1 more lesson

The shape of it

How this course works