Rupesh Tiwari

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Introduction to Azure Fundamentals

Can you describe basic concepts of cloud computing? Is Azure right solution for your business needs? How can you create your Azure subscription today? I will explain all in this article. This is the 1st article on “Azure Fundamentals part 1: Describe core Azure concepts”.

Introduction

What is Azure?

Azure is a continually expanding set of cloud services that help your organization meet your current and future business challenges. Learn More about What is Microsoft Azure here…

What is Azure fundamentals?

Azure fundamentals is a series of six learning paths or six knowledge domain areas.

Why should I take Azure fundamentals?

You boss or manager wants to use Azure in your company. So you must be prepare for it. Now a days there are many jobs available which requires Azure certifications.

Take Azure fundamentals if you:

Have general interest in Azure or in the cloud.
Want to earn official certification from Microsoft.

Exam AZ-900

AZ-900 Domain Area	Weight
Describe cloud concepts	20-25%
Describe core Azure services	15-20%
Describe core solutions and management tools on Azure	10-15%
Describe general security and network security features	10-15%
Describe identity, governance, privacy, and compliance features	20-25%
Describe Azure cost management and Service Level Agreements	10-15%

What is cloud computing?

It’s the delivery of computing services over the internet, which is otherwise known as the cloud. These services include servers, storage, databases, networking, software, analytics, and intelligence. Cloud computing offers faster innovation, flexible resources, and economies of scale.

🏆 Pro Tip

Save your company money 💰 “You’ll only need to pay for the resources and computing time that you use”.

Why is cloud computing typically cheaper to use?

Cloud computing is the delivery of computing services over the internet by using a pay-as-you-go pricing model.

To put it another way, cloud computing is a way to rent compute power and storage from someone else’s datacenter. You can treat cloud resources like you would your resources in your own datacenter. When you’re done using them, you give them back. You’re billed only for what you use.

Instead of maintaining CPUs and storage in your datacenter, you rent them for the time that you need them. The cloud provider takes care of maintaining the underlying infrastructure for you. The cloud enables you to quickly solve your toughest business challenges, and bring cutting-edge solutions to your users.

Why should You move to the cloud?

In our ever-changing digital world, two trends emerge:

Teams deliver new features to their users at record speeds.
Users expect an increasingly rich and immersive experience with their devices and with software.

The cloud provides on-demand access to:

A nearly limitless pool of raw compute, storage, and networking components.
Speech recognition and other cognitive services that help make your application stand out from the crowd.
Analytics services that deliver telemetry data from your software and devices.

What are some cloud computing advantages?

🏆 Pro Tip

Remember the sentence GASHED. G = Geo-distribution A = Agility S = Scalability H = High availability E = Elasticity D = Disaster recovery

👇 Below are also called as cloud concepts:

Geo-distribution: You can deploy apps and data to regional datacenters around the globe, thereby ensuring that your customers always have the best performance in their region.
Agility: Deploy and configure cloud-based resources quickly as your app requirements change.
Scalability: Apps in the cloud can scale vertically and horizontally:
- Scale vertically to increase compute capacity by adding RAM or CPUs to a virtual machine.
- Scaling horizontally increases compute capacity by adding instances of resources, such as adding VMs to the configuration.
High availability: Depending on the service-level agreement (SLA) that you choose, your cloud-based apps can provide a continuous user experience with no apparent downtime, even when things go wrong. This is also called as Reliability.
Elasticity: You can configure cloud-based apps to take advantage of autoscaling, so your apps always have the resources they need. It can decrease resource if they are underused or increase if demand is high.
Disaster recovery: By taking advantage of cloud-based backup services, data replication, and geo-distribution, you can deploy your apps with the confidence that comes from knowing that your data is safe in the event of disaster.

What are cloud service models?

There are 3 Cloud Service Models:

Infrastructure-as-a-Service (IaaS) the cloud provider will keep the hardware up-to-date, but operating system maintenance and network configuration is up to you as the cloud tenant.
Platform-as-a-Service (PaaS) the cloud provider manages the virtual machines and networking resources, and the cloud tenant deploys their applications into the managed hosting environment.
Software-as-a-Service(SaaS) the cloud provider manages all aspects of the application environment, such as virtual machines, networking resources, data storage, and applications. The cloud tenant only needs to provide their data to the application managed by the cloud provider.

The following illustration demonstrates the services that might run in each of the cloud service models.

The following chart illustrates the various levels of responsibility between a cloud provider and a cloud tenant.

What is serverless computing?

It is a PaaS model. Normally used by developers to build applications faster. With serverless applications, the cloud service provider automatically provisions, scales, and manages the infrastructure required to run the code. Serverless architectures are highly scalable and event-driven, only using resources when a specific function or trigger occurs.

🏆 Pro Tip

The “serverless” name comes from the fact that the tasks associated with infrastructure provisioning and management are invisible to the developer. This approach enables developers to increase their focus on the business logic, and deliver more value to the core of the business.

What are public, private, and hybrid clouds?

There are three deployment models:

Public cloud is cloud resources, such as servers and storage, are owned and operated by a third-party cloud service provider, and delivered over the internet.
Private cloud consists of computing resources used exclusively by users from one business or organization. A private cloud can be physically located at your organization’s on-site (on-premises) datacenter, or it can be hosted by a third-party service provider.
Hybrid cloud is a computing environment that combines a public cloud and a private cloud by allowing data and applications to be shared between them.

How Azure Works?

Azure works with technology called Virtualization. Means separates the tight coupling between Hardware and its operating system.

It uses Hypervisor to abstract away the coupling between hardware & software using Virtualization technique.

Azure has lots of Data Centers in many regions spread around the world. Azure uses virtualization in massive scale in all of its data-centers.

Data-center has Rack and Rack has servers. Each server includes Hypervisor.

There is Network Switch which allows connectivity to all of the servers.

One server in the rack runs special software called as Fabric Controller.

Azure Fabric Controller is connected to ORCHESTRATOR software. An Orchestrator responds to user requests.

🏆 Pro Tip

In-fact Azure Orchestrator manages everything that happens in Azure. Like it can package the Virtual Machine request coming from user and send to Azure Fabric Controller to create it.

The users can make requests using the Orchestrators Web API.

The Web API can be called using Azure Portal and many tools.

For example, when a user makes a request to create a Virtual Machine (VM) from Azure portal. The Orchestrator packages everything needed and chooses the best server Rack. And then sends the package and request to the Fabric Controller. Once the Fabric Controller has created the Virtual Machine, the user can connect to it.

Azure Portal

The Azure portal is a web-based, unified console that provides an alternative to command-line tools.

Learn More …

What is Azure Marketplace?

Azure Marketplace helps connect users with Microsoft partners, independent software vendors, and startups that are offering their solutions and services, which are optimized to run on Azure.

Azure Marketplace is an online store that hosts applications that are certified and optimized to run in Azure. Many types of applications are available, ranging from AI and machine learning to web applications.

Azure Services

Let’s take a quick tour of the high-level services Azure offers.

🏆 Pro Tip

Remember this sentence “I can DISBAND CWM” D = Databases I = Internet of Thing S = Storage B = Big Data A = Artificial Intelligence N = Networking D = DevOps C = Compute W = Web M = Mobile

Databases

Azure provides multiple database services to store a wide variety of data types and volumes.

Cosmos DB
MySQL
MariaDB
PostgreSQL
SQL Database
SQL Server on Azure Virtual Machines
Redis (Azure Cache for Redis)
Database Migration Service
Synapse Analytics

Learn Azure Databases Services Definitions from Microsoft Document…

Internet of Thing (IoT)

Connect to large set of your IOT assets to monitor and manage. Analyze their data as well when it arrives from sensors.

IoT Central ( SaaS to connect, monitor and manage)
Azure IoT Hub ( to connect and communication )
IoT Edge ( built-in models to be pushed to IoT devices )

Learn IoT options definitions from Microsoft Document…

Storage

Azure provides four main types of storage services.

🏆 Pro Tip

Remember this sentence “Big Quality Task Force”. B = Blob storage Q = Queue storage T = Table storage F = File storage

🏆 Pro Tip

Cosmos DB vs Table Storage
Cosmos DB has 99.999% SLA, supports many NoSQL APIs, variations of NoSQL storage – Document, Graph, Key-Value and Tabular. However, Table Storage is just for NoSQL documents and cheaper than Cosmos DB.

Azure Storage Benefits are:

D = Durable
M = Managed
A = Accessible
S = Secure
S = Scalable

🏆 Pro Tip

Remember this sentence “Double MASS”.

Learn Azure Storage Services Definitions from Microsoft Document…

Big Data

Run analytics on massive scale for Large volume of data using open source clusters. And make decision based on the complex queries.

Synapse Analytics (Azure Synapse Analytics)
HDInsight (Azure HDInsight )
Databricks (Azure Databricks)

🏆 Pro Tip

3 V’s of Big data is variety, velocity, and volume.

Artificial Intelligence

Use existing data to focus future behaviors using AI. Use Machine learning to build train and deploy model to cloud.

Artificial Intelligence (AI) 🅰️
For example, when you shop online, machine learning helps recommend other products you might like based on what you’ve purchased. Or when your credit card is swiped, machine learning compares the transaction to a database of transactions and helps detect fraud. And when your robot vacuum cleaner vacuums a room, machine learning helps it decide whether the job is done.

Machine Learning Service
Machine Learning Studio
Cognitive Services
- Vision
- Speech
- Knowledge mapping
- Bing Search
- Natural Language processing

Networking

Linking compute resources and providing access to applications is the key function of Azure networking.

Here are some examples of networking services in Azure.

🏆 Pro Tip

Remember this sentence “3 Virus LANDED Capture The Flag”. V = Virtual Network V = VPN Gateway V = Virtual WAN L = Load Balancer A = Application Gateway N = Network Watcher D = DDoS Protection E = ExpressRoute D = DNS C = Content Delivery Network (CDN) T = Traffic Manager F = Firewall

Learn Azure Networking Services Definitions from Microsoft Document…

DevOps

Create build and release pipe line for CI/CD

DevOps
DevTest Labs

Compute Services

Here are some examples of compute services in Azure.

🏆 Pro Tip

Remember this sentence “Very Special Kids Can join Border Security Force”. V = Virtual Machine S = Scale Sets ( Virtual Machine Scale Sets) K = Kubernetes Service C = Container Instances B = Batch S = Service Fabric F = Functions

Learn Azure Compute Services Definitions from Microsoft Document…

Web

Azure includes first-class support to build and host web apps and HTTP-based web services. The following Azure services are focused on web hosting.

🏆 Pro Tip

Remember this sentence “Calm ASANA”. C = Cognitive Search A = App Service S = SignalR Service A = Apps feature of Azure App Service N = Notification Hubs A = API Management

Learn Azure Web hosting options definitions from Microsoft Document…

Mobile

With Azure, developers can create mobile back-end services for iOS, Android, and Windows apps quickly and easily.

🏆 Pro Tip

Remember this sentence: ABCO “Association of Business Consulting Organizations”. A = Autoscaling to match business needs B = Broadcasting push notifications. C = Connectivity to on-premises data. O = Offline data synchronization.

Learn Azure Mobile Services Definitions from Microsoft Document…

Get started with Azure accounts

What is the Azure account?

To create and use Azure services, you need an Azure subscription. When you create an Azure account then Azure subscription will be created automatically for you. You’re free to create additional subscriptions. Next, you can start creating Azure resources within each subscription.

🏆 Pro Tip

You don’t need to purchase an Azure account before you can use any Azure resources. Because, You can use a free Azure account or a Microsoft Learn sandbox to create resources.

What is the Azure free account?

The Azure free account includes:

Free access to popular Azure products for 12 months.
A credit to spend for the first 30 days.
Access to more than 25 products that are always free.

What is the Learn sandbox?

Maximum Learn exercises use a technology called the sandbox, which creates a temporary subscription that’s added to your Azure account. Learn automatically cleans up the temporary resources for you after you’ve completed the module. The sandbox is the preferred method to use though, because it allows you to create and test Azure resources at no cost to you.

Azure fundamentals facts

Three cloud computing deployment models are public cloud, private cloud, and hybrid cloud.
Cloud computing typically decreases your operating expenses.
IaaS, PaaS, and SaaS are examples of cloud computing service models.
Cloud computing resources are NOT usually limited to specific geographic regions.

References

Introduction to azure fundamentals by Microsoft online free training

Thanks for reading my article till end. I hope you learned something special today. If you enjoyed this article then please share to your friends and if you have suggestions or thoughts to share with me then please write in the comment box.

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Rupesh Tiwari
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Email: rupesh.tiwari.info@gmail.com
Website: RupeshTiwari.com