Saurabh Shrivastava - AWS for Solutions Architects: Build and migrate your workload to Amazon Web Services using the cloud-native approach, 2nd Edition

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Early Access Publication: AWS for Solutions Architects

Early Access Production Reference: B18475

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ISBN: 978-1-80323-895-1

Welcome to Packt Early Access. Were giving you an exclusive preview of this book before it goes on sale. It can take many months to write a book, but our authors have cutting-edge information to share with you today. Early Access gives you an insight into the latest developments by making chapter drafts available. The chapters may be a little rough around the edges right now, but our authors will update them over time.You can dip in and out ofthis bookorfollow alongfrom start to finish; Early Access is designed to be flexible. We hope you enjoy getting to know more about the process of writing a Packt book.

1. Chapter 1: Understanding AWS Cloud Principles and Key Characteristics
2. Chapter 2: Leveraging the Cloud for Digital Transformation
3. Chapter 3: AWS Networking and Content Delivery
4. Chapter 4: Storage in AWS Choosing the Right Tool for the Job
5. Chapter 5: Harnessing the Power of Cloud Computing
6. Chapter 6: Selecting the Right Database Service
7. Chapter 7: Best Practices for Application Security, Identity, and Compliance
8. Chapter 8: Drive Efficiency with Cloud Automation, Monitoring, and Alert
9. Chapter 9: AWS EMR and AWS Glue Extracting, Transforming, and Loading Data
10. Chapter 10: Amazon Athena and Amazon QuickSight Combining the Simplicity of Files with the Power of SQL and Data Visualization
11. Chapter 11: Machine Learning, IoT, and Blockchain in AWS
12. Chapter 12: Serverless and Container Patterns
13. Chapter 13: Microservice and Event-Driven Architectures
14. Chapter 14: Domain-Driven Design
15. Chapter 15: Data Lake Patterns Integrating Your Data across the Enterprise
16. Chapter 16: Availability, Reliability, and Scalability Patterns
17. Chapter 17: Hands-On Lab and Use Case

The last decade has revolutionized the information technology industry, where cloud computing was introduced, and now it is everywhere. Nowadays, the cloud is the new normal. Everyone in the industry is adopting the cloud or seriously thinking about it. It all started with Amazon launching a cloud service called Amazon Web Services (AWS) in 2006 with a couple of services. Netflix migrated to AWS in 2008 and became a market disrupter. After that, no looking back and many industry revolutions led by cloud-born startups like Airbnb in hospitality, Robinhood in finance, Lyft in transportation, and many more. Cloud rapidly gain market share, and now all big names like Capital One, JP Morgan Chase, Nasdaq, NFL, General Electric, everyone accelerating their digital journey by cloud adoption.Even though the term cloud is pervasive today, not everyone understands what the cloud is. The cloud can be different things for different people. Another reason is that the cloud is continuously evolving.In this chapter, we will put our best foot forward and attempt to define the cloud, and then we will try to define the AWS cloud more specifically. We will also cover the vast and ever-growing influence and adoption of the cloud in general and AWS in particular. After that, we'll start introducing some elementary cloud and AWS terms to start getting our feet wet with the lingo.We will then try to understand why cloud computing is so popular. Assuming you buy the premise that the cloud is taking the world by storm. We will then learn how we can take a slice of the cloud pie and build our credibility by becoming certified. Finally, toward the end of the chapter, we will look at some tips and tricks you can use to simplify your journey to obtain AWS certifications. We will look at some frequently asked questions about the AWS certifications.In this chapter, we will cover the following topics:

• What is cloud computing?
• What is AWS cloud computing?
• The market share, influence, and adoption of AWS
• Basic cloud and AWS terminology
• Why is cloud computing so popular?
• The six pillars of a well-architected framework
• Building credibility by becoming certified
• Learning tips and tricks to obtain AWS certifications
• Some frequently asked questions about AWS certifications

Let's get started, shall we?

The best way to understand the cloud is to take the electricity supply analogy. To get electricity in your house, you just flip the switch on. Electric bulbs lighten your home and other appliances. In this case, you only pay for your electricity use when you need them. When you switch off the electric appliances, you are not paying anything. Now, imagine if you need to power a couple of appliances, and for that, you have to set up an entire powerhouse. It will be costly, right? as it involves the cost of maintaining the turbine, generator, and building the whole infrastructure. Utility companies make your job easier by supplying the electricity quantity you need. They maintain the entire infrastructure to generate electricity. They could keep the cost down by distributing electricity to millions of houses which helped them benefit from mass utilization. Now let's come to cloud computing; while consuming cloud resources, you pay for IT infrastructure such as computing and storage in the pay-as-you-go model. Here, public clouds like AWS do the heavy lifting to maintain IT infrastructure and provide you access over the internet under pay as you go, model. They are revolutionizing the IT infrastructure industry, where traditionally, you have to maintain your servers all by yourself on-premise to run your business, but now you can offload that to the public cloud and focus on your core business. For example, CapitalOne's core business is banking and does not run a large data center. Before going deeper into cloud computing, let's analyze some of the key characteristics of the public cloud.

One important characteristic of the public cloud providers such as AWS is the ability to quickly and frictionlessly provision resources. These resources could be a single instance of a database or a thousand copies of the same server used to handle your web traffic. These servers can be provisioned within minutes.Contrast that with how performing the same operation may play out in a traditional on-premises environment. Let's use an example. You need to set up a cluster of computers to host your latest service. Your next actions probably look something like this: