Microsoft Azure Fundamentals Exam Cram: Second Edition

AZ-900: Microsoft Azure Fundamentals

Exam Cram Notes

Second Edition

Chapter 01: Introduction to Azure

Introduction:

Microsoft's Cloud Platform, like Google and Amazon's Cloud Platforms, is Azure. It's usually a platform that lets us use Microsoft software. It simplifies our work by providing virtual machines, rapid data processing, analytical tools, and monitoring sensors. Azure pricing is also more straightforward and less expensive. It's known as Pay as You Go, which means you only pay for the services when you use them.

What is Cloud Computing?

Cloud computing is the process of storing data and gaining access to machines via the internet. It is the internet-based delivery of various computer services such as servers, software, analytics, databases, and storage.

Benefits of Cloud Computing

We are all aware that Cloud Computing has resulted in a significant shift in traditional company thinking about IT resources. There are numerous advantages of using cloud computing. Here are a few examples:

Cost

Scalability

Increase Speed and Agility

Reliability

Security

The Economy of Cloud Computing

In the traditional context of enterprises, where big capital expenditures are required, the cloud is the most cost-effective solution to transition to a pay-as-you-go model. VMs, App Services, and other Azure services are mostly priced on an hourly basis. There is also consumption-based pricing, which is dependent on the number of times a function is executed, the number of times a resource is used per second, or both. An example of consumption-based pricing is Azure Function.

Technical Terms

To comprehend Cloud Computing, you must first comprehend a few technical phrases.

High Availability (HA) - You can achieve high availability for your servers by replacing a failed server with a new one as soon as possible. The number of VMs you set up to eventually cover in case one goes down determines how well HA works.

Fault Tolerance - Fault tolerance refers to the fact that if there is a fault on the Azure side, it is promptly addressed by Azure with no downtime.

Disaster Recovery (DR) - In the event of a catastrophic event, such as a cyber-attack. If something goes wrong with these important systems, you have a plan in place in DR to get your business back up and running.

Scalability - Scalability in cloud computing refers to the capacity to easily and quickly add or remove resources in response to demand.

Elasticity - Elasticity refers to the ability to dynamically expand or contract network resources in order to adapt to autonomous working load changes and maximize resource utilization.

Agility - The ability to react rapidly and efficiently to changes in the business environment is known as agility. The capacity to quickly design, test, and deploy business-driven software applications is often referred to as agility.

Types of Cloud computing

IAAS (Infrastructure as a service)

PAAS (Platform as a service)

Serverless

SAAS (Software as a service)

Cloud Computing Deployments Models

There are three different types of Cloud Computing: Public, Private and Hybrid.

Third-party computer services providers such as storage, software, and other services own and run the public cloud.

A private cloud is a model that runs cloud resources within its own data center using the same legacy IT architecture.

Hybrid clouds combine