1. Introduction to Cloud | Azure data engineer

Summary

This video introduces cloud computing and its relevance to data engineering. It explains the concept of cloud computing as accessing services over the internet, provided by companies like AWS, Azure, and GCP. The video explores different cloud types—public, private, and hybrid—and details the three primary cloud service models: SaaS, PaaS, and IaaS. The practical benefits of cloud services are highlighted through the example of Flipkart’s storage needs during high-traffic events like Big Billion Day, emphasizing the flexibility and cost-efficiency of the cloud. The video aims to lay a strong foundation for deeper data engineering topics.

Takeaways

• 😀 Cloud computing is the process of accessing services over the internet that are managed by third-party providers.
• 😀 Major cloud providers include AWS, Azure, and GCP, which offer various services to users on a pay-as-you-go basis.
• 😀 Cloud computing eliminates the need for users to maintain infrastructure like storage and servers themselves.
• 😀 The advantage of cloud computing is that you only pay for the services you use, such as storage, which can scale according to demand.
• 😀 In a scenario like Flipkart’s Big Billion Day, cloud computing allows businesses to scale storage and services as needed without overcommitting resources.
• 😀 There are three main types of clouds: Public Cloud (open to all), Private Cloud (exclusive to a specific organization), and Hybrid Cloud (a combination of public and private).
• 😀 Public Cloud services are open for all and less secure, whereas Private Cloud services are more secure but usually costlier.
• 😀 Hybrid Cloud combines the flexibility of public cloud with the security of private cloud, offering a balance of both.
• 😀 Cloud computing service models include Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS), each providing varying levels of control and infrastructure management.
• 😀 SaaS provides complete services where users only interact with the software (e.g., Gmail), PaaS gives access to platforms where users can run applications (e.g., Elastic Beanstalk), and IaaS offers the fundamental infrastructure like servers and storage.

Q & A

What is cloud computing?

Cloud computing is the process of accessing services, such as storage or servers, over the internet that are managed by someone else, usually a cloud service provider.

What are the different cloud service providers mentioned in the video?

The video mentions three primary cloud service providers: AWS (Amazon Web Services), Azure (Microsoft), and GCP (Google Cloud Platform).

What is the main advantage of using cloud services for storage?

The main advantage of cloud services is the pay-as-you-use model, meaning you only pay for the services you use, which is more cost-effective compared to purchasing and maintaining physical infrastructure.

What is a public cloud?

A public cloud is a cloud infrastructure that is open to all users, where anyone can access services like storage (e.g., Google Drive). It is typically less secure compared to a private cloud.

What is a private cloud?

A private cloud is a cloud infrastructure that is restricted to specific users, typically within an organization. It provides more control and security compared to a public cloud.

What is a hybrid cloud?

A hybrid cloud is a combination of both public and private clouds. It allows some resources to be open to external users while maintaining private and secure resources for internal use.

What is the difference between public and private clouds in terms of security?

Public clouds are open to everyone and generally have less security compared to private clouds, which are restricted to specific users within an organization, offering more secure access.

What is Software as a Service (SaaS)?

SaaS is a cloud service model where the service provider develops, hosts, and manages software, and users access it over the internet (e.g., Gmail). The user doesn't manage or control the underlying infrastructure.

What is Platform as a Service (PaaS)?

PaaS is a cloud service model that provides a platform allowing customers to develop, run, and manage applications without dealing with the underlying hardware or software infrastructure. An example is Elastic Beanstalk from AWS.

What is Infrastructure as a Service (IaaS)?

IaaS is a cloud service model where users are provided with virtualized computing resources over the internet, such as storage, networking, and servers, for hosting applications and services.