Azure Services Overview – A Map of What Azure Actually Provides
Azure has over two hundred services. Walking into that without a map is overwhelming. This post gives you that map — the key categories, what each covers, and how they connect.
- The main service categories that organise Azure's portfolio of cloud services
- What each category covers at a high level and which services it includes
- How different service categories work together to form complete solutions
- Which service categories are most relevant to the AZ-900 exam curriculum
What is This Topic?
Azure organises its services into categories based on the type of function they provide. Understanding these categories is the first step to navigating Azure confidently — knowing where to look when you need a specific capability and understanding how different services relate to each other.
The major categories include Compute, Storage, Networking, Databases, Identity and Security, Monitoring and Management, and AI and Analytics. Each category contains multiple services that address specific use cases within that domain. A complete cloud solution typically draws on services from several categories working together.
Why Does This Matter?
AZ-900 is structured around these service categories. Each section of the exam covers a specific domain — compute services, storage services, networking, security, governance, and so on. Understanding the categories and what belongs in each one helps you organise your knowledge and approach exam questions systematically. It also gives you the mental framework for discussing Azure architecture in real IT roles.
The Real-World Story
Think about a large hospital complex with different specialised departments — emergency, surgery, radiology, pharmacy, administration, security, and maintenance.
When a patient arrives, they do not interact with one department and leave. Their care involves multiple departments working together. Emergency assesses them. Radiology takes scans. Surgery performs an operation. Pharmacy provides medication. Administration handles records. Security ensures the facility is safe. Each department has a specific function, specific staff, and specific equipment — but they all serve the same patient outcome.
Azure services work the same way. A cloud application typically does not use just one service. It uses compute to run the application logic, storage to persist data, networking to connect components, a database for structured data, identity services to authenticate users, and monitoring to observe how everything is performing. Each category has a specific role, and they work together to deliver the complete solution.
Going Deeper
Compute is the category covering services that provide processing power to run applications. Azure Virtual Machines give you raw virtualised computing. Azure App Service provides managed hosting for web applications and APIs. Azure Kubernetes Service manages containerised workloads. Azure Functions enables serverless event-driven computing. Azure Virtual Desktop delivers cloud-hosted desktop environments. The right compute service depends on how much control you need and how much management overhead you are willing to carry.
Storage covers services for persisting data of different types. Azure Blob Storage handles large amounts of unstructured data like files, images, videos, and backups. Azure File Storage provides managed file shares accessible over standard protocols. Azure Queue and Table Storage serve specific application data patterns. Azure Disk Storage provides persistent storage volumes for virtual machines.
Networking services connect Azure resources to each other and to the outside world. Azure Virtual Network creates isolated private networks in Azure. Azure Load Balancer and Application Gateway distribute traffic across multiple resources. VPN Gateway and ExpressRoute provide connectivity between Azure and on-premises environments. Azure DNS manages domain name resolution. Azure CDN accelerates content delivery globally.
Database services cover managed data persistence for structured and semi-structured data. Azure SQL Database is a fully managed relational database. Azure Cosmos DB is a globally distributed multi-model NoSQL database. Azure Database for MySQL and PostgreSQL provide managed open-source relational databases. Azure Synapse Analytics handles large-scale data warehousing.
Identity and Security services protect Azure environments and manage access. Microsoft Entra ID is Azure's identity platform. Azure Key Vault securely stores secrets, keys, and certificates. Microsoft Defender for Cloud monitors security posture. Azure Policy enforces governance rules.
Monitoring and Management services provide visibility and control over Azure environments. Azure Monitor collects metrics and logs. Log Analytics Workspace enables log querying. Application Insights monitors application performance. Azure Advisor provides recommendations. Azure Automation enables automated management tasks.
A complete cloud solution typically draws on services from several categories working together. Azure architecture is not about isolated services — it is about how those services integrate into a full operational environment.
- Azure organises its two hundred-plus services into categories — Compute, Storage, Networking, Databases, Identity and Security, Monitoring, and AI and Analytics — each covering a specific function domain.
- Compute services range from raw virtual machines in IaaS to fully managed serverless functions — the right choice depends on control requirements and management capacity.
- Storage and database services cover different data types and access patterns — blob for unstructured data, relational databases for structured data, and Cosmos DB for globally distributed applications.
- Networking services connect Azure resources internally and to external environments, including on-premises infrastructure through VPN Gateway and ExpressRoute.
- Complete cloud solutions typically draw from multiple service categories working together — understanding the categories helps you think about architecture holistically rather than service by service.
