Cloud Computing
Cloud computing is a technology that allows individuals and organizations to access computing resources such as servers, storage, databases, networking, software, and analytics over the internet. Instead of maintaining physical hardware or software on-site, users can rent or subscribe to services provided by cloud vendors like Amazon Web Services (AWS), Microsoft Azure, or Google Cloud Platform (GCP). This approach offers flexibility, scalability, and cost-efficiency, as users only pay for what they use and can scale resources up or down based on demand.
Key Characteristics of Cloud Computing
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On-demand self-service
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Broad network access
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Resource pooling
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Rapid elasticity
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Measured service
Types of Cloud Computing
- Public Cloud – Services offered over the public internet (e.g., AWS, Azure, GCP).
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Private Cloud – Dedicated infrastructure for a single organization.
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Hybrid Cloud – A combination of public and private cloud systems.
Cloud Computing Resources
- Servers
- Storage
- Databases
- Networking
- Software
- Artificial Intelligence
Service Models
- IaaS (Infrastructure as a Service) – e.g., AWS EC2, Azure VM.
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PaaS (Platform as a Service) – e.g., Google App Engine.
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SaaS (Software as a Service) – e.g., Google Workspace, Microsoft 365.
Public Cloud
- Services are delivered over the public internet by third-party providers (e.g., AWS, Azure, GCP).
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Resources are shared among multiple users (multi-tenant).
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Cost-effective and scalable.
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Suitable for startups, small businesses, general-purpose workloads.
Private Cloud
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Dedicated solely to a single organization, not shared with others.
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Can be hosted on-premises or by a third-party provider.
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Offers higher security, control, and customization.
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Ideal for regulated industries with strict compliance or sensitive data privacy needs.
Hybrid Cloud
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Combines public and private cloud environments.
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Enables data and application movement between clouds.
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Offers flexibility, scalability, and cost optimization.
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Useful for businesses that want to balance sensitive data control with public cloud efficiency.
Cloud Storage
- Stores data on remote servers accessible via the internet.
- Scales easily based on storage needs without physical hardware.
- Enables data backup and recovery for security and reliability.
- Supports file sharing allowing multiple users to access and edit files in real time.
Cloud Security
- Protects data, applications, and infrastructure from cyber threats in cloud environments.
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Uses encryption, firewalls, and identity management to secure access and communication.
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Ensures compliance with data privacy regulations like GDPR, HIPAA, and ISO standards.
Serverless Computing
- Automatically manages infrastructure, letting developers focus only on code logic.
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Scales applications instantly based on real-time user demand or load.
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Charges based on execution time, reducing overall operational cloud costs.
Cloud Migration
- Moves data, applications, and workloads from on-premises systems to the cloud.
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Improves scalability, performance, and cost-efficiency of IT operations.
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Requires careful planning to minimize downtime, data loss, and compatibility issues.
Cloud Cost Optimization Analysis
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Objective: Analyze resource usage and identify cost-saving opportunities in cloud infrastructure.
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Skills Involved: AWS Cost Explorer, Azure Cost Management, budgeting tools, automation scripts.
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Outcome: Create a detailed report or dashboard showing usage trends and optimization strategies.
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