Certified - Azure Cloud Fundamentals (AZ-900)

This episode examines the different storage types and access tiers available in Azure, helping learners understand how to choose the right option for performance, cost, and data lifecycle needs. Azure provides several storage types—Blob, File, Queue, and Table—each serving specific use cases. Within these, access tiers such as Hot, Cool, and Archive allow organizations to optimize expenses based o...

Azure Storage is a foundational component of the platform, supporting nearly every service and workload type. This episode introduces the main storage services—Blob, File, Queue, and Table—and explains their purposes. Blob Storage handles unstructured data such as documents and images, while File Storage provides shared file systems accessible over standard protocols. Queue Storage enables asynchr...

Endpoints define how resources communicate, and this episode breaks down the difference between public and private endpoints in Azure. Public endpoints allow services to be accessed from the internet, while private endpoints restrict access to a specific virtual network through private IP addresses. Learners will see how private endpoints increase security by keeping traffic on Microsoft’s interna...

This episode explores Azure’s hybrid networking options—VPN Gateway and ExpressRoute—which enable secure communication between on-premises environments and the cloud. A VPN Gateway establishes encrypted tunnels over the public internet using standard protocols, while ExpressRoute provides private, dedicated connections that bypass the internet entirely. Learners will understand the trade-offs betw...

Azure networking supports seamless communication between VNets and reliable domain name resolution, and this episode explains how those functions operate. VNet peering allows networks to connect privately within Azure, enabling resources in different VNets to communicate as if they were on the same network. The episode clarifies that peering maintains isolation for security but eliminates the need...

This episode focuses on Virtual Networks, known as VNets, which form the foundation of all networking within Azure. Learners discover how VNets allow Azure resources—such as virtual machines and applications—to securely communicate with each other, the internet, and on-premises networks. Each VNet is a logically isolated environment, and within it, subnets divide the address space into smaller, ma...

Networking connects all Azure resources, and this episode provides the foundational understanding needed to navigate that ecosystem. Learners explore how Azure’s virtual network, or VNet, functions as a logical isolation of the Azure cloud dedicated to a subscription. The episode explains how VNets allow secure communication between resources, between regions, and even between on-premises networks...

This episode examines how Azure provides flexible environments for hosting applications, from simple websites to complex enterprise systems. Learners explore Azure App Service, which enables developers to host web apps and APIs without managing servers, as well as container-based options like Azure Kubernetes Service for orchestrating microservices. Virtual machines remain available for applicatio...

This episode focuses on two important Azure compute services: Availability Sets and Azure Virtual Desktop. Availability Sets are designed to protect virtual machines from planned and unplanned downtime within a datacenter by distributing them across multiple fault and update domains. Learners will understand how this configuration provides resilience at the infrastructure level without requiring a...

This episode explores Azure Virtual Machines, or VMs, one of the most versatile and widely used services in the platform. Learners gain a clear understanding of how VMs replicate the behavior of physical computers while benefiting from cloud flexibility. Azure provides numerous VM families optimized for compute, memory, or storage performance, and the episode discusses how to select the right size...

This episode introduces the main compute options in Azure—virtual machines, containers, and functions—and explains when each is appropriate. Virtual machines provide full control over operating systems and configurations, making them ideal for workloads that require customization or compatibility with legacy applications. Containers offer a lighter, faster approach, packaging applications with the...

This episode explains Azure’s organizational hierarchy, which is built on subscriptions and management groups to support scalable governance. A subscription acts as both a billing container and a security boundary, defining what resources belong to a particular account. Management groups sit above subscriptions, allowing administrators to apply policies, compliance rules, and access controls acros...

In Azure, every deployed component—whether a virtual machine, database, or storage account—is called a resource. This episode introduces the concept of resource groups, which organize related resources into logical containers for management and lifecycle control. Learners discover how resource groups simplify tasks like monitoring, access control, and cost tracking by grouping items that share the...

This episode offers a look inside Azure datacenters and explains how Microsoft secures its physical infrastructure to safeguard customer data. Each datacenter represents the intersection of technology, operations, and compliance—housing thousands of servers with layered protections against unauthorized access and environmental risks. Learners gain insight into the physical security controls that a...

Availability Zones provide fault isolation within an Azure region, and this episode explains how they serve as the foundation of high availability and disaster tolerance. Each zone represents one or more datacenters equipped with independent power, cooling, and networking. By deploying resources across zones, organizations protect applications from localized failures. Learners will hear how servic...

This episode explores how Azure organizes its infrastructure through regions, region pairs, and sovereign regions to ensure resilience, compliance, and performance. A region is a geographical area containing multiple datacenters, while region pairs are two strategically chosen regions within the same geography designed for replication and recovery. Learners discover how these pairs provide redunda...

This episode introduces the structure that makes Azure a truly global platform. Learners explore how Microsoft designs its cloud infrastructure across hundreds of datacenters organized into regions and connected by one of the largest private networks on earth. These regions are grouped into region pairs, which enable data replication and disaster recovery, ensuring resilience and continuity. The e...

This episode brings together the three primary service models—Infrastructure, Platform, and Software as a Service—by teaching how to evaluate their use cases in context. Understanding the differences among these layers is a central AZ-900 skill, as exam questions often present scenarios requiring learners to identify which model fits best. The episode explains that IaaS provides control and custom...

Software as a Service, or SaaS, represents the highest level of abstraction in cloud delivery models. This episode defines SaaS as software accessed over the internet without managing underlying infrastructure, platforms, or updates. Microsoft 365 and Dynamics 365 are common Azure-aligned examples, where users simply sign in and start working. For AZ-900 learners, understanding SaaS is essential b...

Platform as a Service, or PaaS, sits one level above infrastructure, providing managed environments for building, testing, and deploying applications without the complexity of maintaining servers or operating systems. This episode explains how Azure’s PaaS offerings, such as App Service, Azure SQL Database, and Azure Kubernetes Service, streamline development while preserving flexibility. PaaS all...

Infrastructure as a Service, or IaaS, is the most fundamental layer of cloud computing, providing virtualized hardware resources that customers can configure as needed. This episode clarifies how IaaS delivers compute, storage, and networking capabilities without requiring ownership of physical infrastructure. Learners discover how Azure’s virtual machines, virtual networks, and load balancers exe...

This episode examines how Azure delivers comprehensive advantages in security, governance, and manageability—three pillars that distinguish mature cloud platforms from simple hosting environments. Microsoft invests heavily in securing its global infrastructure and provides integrated tools that help customers maintain compliance and control. Learners explore how Azure’s defense-in-depth model, Mic...

Reliability and predictability ensure that cloud services behave consistently, while performance defines how efficiently resources deliver results. This episode explores how these characteristics interact within Azure’s architecture and why they are vital to both business operations and exam preparation. Reliability is achieved through redundancy and proactive monitoring, while predictability come...

This episode explores two fundamental cloud benefits—high availability and scalability—that define why organizations migrate to Azure. High availability ensures systems remain operational even during component failures, achieved through redundancy and fault tolerance across datacenters and regions. Scalability, on the other hand, allows systems to automatically adjust capacity to match workload de...

Serverless computing is one of the most misunderstood terms in cloud technology, and this episode clarifies its meaning in precise, practical terms. Despite the name, servers still exist—but they are managed entirely by the cloud provider, allowing developers to focus on writing code without managing infrastructure. Azure’s serverless offerings, such as Azure Functions and Logic Apps, automaticall...