🚀Day 13- AWS Cloud Essentials ☁️⭐

1) What is Cloud and Why it Matters.
➡Cloud refers to on-demand access to computing resources – servers,
storage, databases, networking, software, analytics, and more – through the internet. This eliminates the need for organizations to purchase, manage, and maintain their own physical infrastructure, offering several advantages:
➡ Cost-effectiveness: Pay only for the resources you use, eliminating upfront capital expenditures and ongoing maintenance costs.
➡ Scalability: Easily scale your resources up or down to meet fluctuating
demands, ensuring agility and responsiveness.
➡Accessibility: Access your data and applications from anywhere with an
internet connection, enabling remote work and collaboration.
➡ Reliability: Cloud providers offer robust infrastructure and security features, ensuring data protection and uptime.

2) Cloud's Mechanisms: How it Works
➡The cloud operates on a virtualized environment, where physical resources are pooled and shared among multiple users. Users access these resources through a web interface or API, allowing them to provision, manage, and configure their virtual infrastructure on demand.

3). Navigating the Cloud : IaaS, PaaS, SaaS
➡ Infrastructure as a Service (IaaS): Provides the fundamental building blocks of IT, including virtual machines, storage, and networking. Users have the most control over their environment but also the most responsibility for
managing it.
➡Platform as a Service (PaaS): Offers a platform for developing, deploying,
and managing applications without worrying about the underlying
infrastructure. Users focus on building their applications, while the platform
handles the infrastructure management.
➡ Software as a Service (SaaS): Provides ready-to-use software applications accessed through a web browser. Users don't need to manage any infrastructure or software, making it ideal for simple needs.

4) Essential Services
➡ Amazon EC2: Provides virtual machines for running various operating
systems and applications.
➡ Amazon S3: Offers object storage for data of any size or type.
➡ Amazon VPC: Creates a virtual private network within the AWS cloud for
secure and isolated environments.
➡ Amazon RDS: Provides managed database services for various database
engines.
➡ AWS Lambda: Runs serverless code without managing servers, ideal for
event-driven tasks.
These are just a few of the many services available on AWS.

5)Deployment Options:
➡On-Premises: You manage and maintain all hardware and software in your own data center. Ideal for highly sensitive data or applications requiring strict control.
➡On-Cloud: Run your applications entirely in the cloud provider's infrastructure.
➡Hybrid Cloud: A mix of on-premises and cloud resources. Provides a balance between control and agility. Use on-premises for core applications and cloud for scalable services.