Glossary
Search Azure terms
Open a clear definition, then continue into exam context, architecture, commands, operational examples, common mistakes, and related concepts.
Search all
Commands
Learning guides
Concept graph
Compare
Search-first Azure knowledge base
Term results
Search for a term or click a category. Results render only after you ask for them, so the glossary does not dump every available term on first load. Each result includes Quick peek and Open full term page actions.
Start with a search or a category.
Try managed identity , resource group , az group , private endpoint , or click Databases to load all database-related terms.
Showing 50 of 1,975 matching terms. Narrow the search to reduce the list.
Compute
field-manual-complete
Virtual machine scale set
A managed group of VM instances that can scale and update as a fleet.
Azure Virtual Machine Scale Sets
intermediate
5 commands
Aliases: VM scale set, Azure VMSS, Virtual Machine Scale Set, scale set, virtual machine scale set
Quick peek
Open full term page
Compute
premium
Automatic OS image upgrade
Automatic OS image upgrade lets Azure update the operating system image used by a virtual machine scale set as new image versions are published. In plain terms, instead of manually replacing every instance, the scale set can roll newer OS disks across the fleet in batches. It helps keep Windows and Linux scale-out workers current. The.
Virtual Machines
intermediate
4 commands
Aliases: VMSS automatic OS image upgrade, automatic OS upgrade, scale set automatic image upgrade, enable-auto-os-upgrade
Quick peek
Open full term page
Compute
field-manual-complete
Uniform orchestration
Uniform orchestration is a Virtual Machine Scale Sets mode where Azure creates and manages a set of mostly identical VM instances from one scale set model. It is suited to stateless, homogeneous fleets that need centralized scaling, upgrades, health, and instance management through the VMSS resource.
Virtual Machine Scale Sets
intermediate
5 commands
Aliases: VMSS Uniform orchestration, uniform VM scale set, Virtual Machine Scale Sets Uniform mode, orchestration mode Uniform
Quick peek
Open full term page
Compute
field-manual-complete
Virtual machine
An Azure compute resource that runs a full guest operating system for workloads needing server-level control.
Azure Virtual Machines
beginner
5 commands
Aliases: Azure VM, VM, cloud virtual server, IaaS virtual machine, virtual machine
Quick peek
Open full term page
AI and Machine Learning
premium
Azure Machine Learning
Azure Machine Learning is a cloud service for managing the machine learning lifecycle, including workspaces, data, training jobs, model deployment, monitoring, and MLOps.
Machine learning operations
advanced
5 commands
Aliases: Azure ML, AML, Machine Learning workspace
Quick peek
Open full term page
Virtual Desktop Infrastructure
premium
Azure Virtual Desktop
Azure Virtual Desktop is a desktop and app virtualization service that runs on Azure, delivering Windows desktops and RemoteApp experiences with host pools, session hosts, and flexible control.
Virtual desktops
fundamentals
5 commands
Aliases: AVD
Quick peek
Open full term page
Containers
premium
CPU scale rule
an autoscale rule that adds or removes running instances when CPU usage crosses a defined threshold for a sustained window.
Autoscale
intermediate
4 commands
Aliases: CPU autoscale rule, Percentage CPU scale rule, Autoscale CPU rule
Quick peek
Open full term page
Compute
verified
VM scale set instance
A VM scale set instance is an individual virtual machine that belongs to an Azure Virtual Machine Scale Set. Operators can inspect, restart, reimage, update, delete, or run commands against specific instances while the scale set manages the broader group model.
Virtual Machine Scale Sets
intermediate
5 commands
Aliases: VM scale set instance, vm scale set instance
Quick peek
Open full term page
Compute
template-specs-upgraded
Scale set capacity
Microsoft Learn describes Virtual Machine Scale Set capacity as the instance count declared for a scale set. Operators can manually change sku.capacity or let autoscale rules adjust it, but each capacity decision affects compute cost, load-balancer health, zone distribution, and whether enough VM instances exist to serve traffic.
Virtual Machines
intermediate
4 commands
Aliases: VMSS capacity, Virtual Machine Scale Set capacity, scale set instance count, sku.capacity, VMSS instance count
Quick peek
Open full term page
Compute
premium
Azure Functions
Azure Functions is Azure serverless compute for running code from triggers such as HTTP requests, queues, timers, events, and service integrations without managing servers.
Serverless compute
intermediate
6 commands
Aliases: Functions, Function App, serverless functions
Quick peek
Open full term page
Containers
premium
Azure Kubernetes Service
Azure Kubernetes Service is Azure’s managed Kubernetes service for deploying, scaling, and operating containerized applications while Azure manages much of the cluster control plane.
Managed Kubernetes
advanced
6 commands
Aliases: AKS, managed Kubernetes
Quick peek
Open full term page
Analytics
premium
Azure Databricks
A unified, open analytics platform on Azure for building, deploying, sharing, and maintaining enterprise data, analytics, and AI solutions at scale.
Data engineering and AI
intermediate
5 commands
Aliases: Databricks on Azure
Quick peek
Open full term page
Databases
premium
Azure SQL Database
Azure SQL Database is a fully managed relational database service in Azure that provides SQL Server-compatible engines as single databases, elastic pools, and serverless or provisioned compute choices. Microsoft Learn presents it as platform as a service with built-in availability, backups, patching, scaling, and security integration.
Database
intermediate
5 commands
Aliases: Azure SQL DB, Azure SQL Database, Azure SQL pooled database, Azure SQL single database, SQL Database
Quick peek
Open full term page
Compute
premium
Azure Compute Gallery
A service for organizing, versioning, replicating, and sharing VM images and application packages across Azure subscriptions, tenants, and regions.
Disks and images
intermediate
4 commands
Aliases: Shared Image Gallery
Quick peek
Open full term page
Databases
premium
Azure SQL logical server
An Azure SQL logical server is a logical administrative construct for Azure SQL Database and related SQL resources. Microsoft Learn describes it as the central point for managing a collection of databases, including logins, firewall rules, auditing, threat detection policies, and failover groups.
Azure SQL Database
fundamentals
16 commands
Aliases: No aliases yet
Quick peek
Open full term page
Databases
complete
SQL managed instance virtual cluster
Microsoft Learn describes the SQL Managed Instance virtual cluster as service-managed infrastructure that hosts managed instances inside a customer virtual network subnet. The virtual cluster contains isolated virtual machines and VM groups, supports management operations, and is created or changed as instances are deployed, scaled, or removed.
SQL Managed Instance
intermediate
5 commands
Aliases: SQL MI virtual cluster, Azure SQL Managed Instance virtual cluster, managed instance platform cluster
Quick peek
Open full term page
Compute
template-specs-upgraded
Scale set upgrade policy
Microsoft Learn explains that a Virtual Machine Scale Set upgrade policy controls how model changes reach individual VM instances. Manual, automatic, and rolling modes affect when instances receive image, SKU, disk, extension, or zone changes, and rolling policies help production fleets update in batches while preserving serving capacity.
Virtual Machines
intermediate
4 commands
Aliases: VMSS upgrade policy, Virtual Machine Scale Set upgrade policy, upgradePolicy.mode, rolling upgrade policy, manual upgrade policy, automatic upgrade policy
Quick peek
Open full term page
Databases
premium field-manual
Managed instance virtual cluster
Managed Instance virtual cluster is an Azure-managed infrastructure grouping that hosts one or more SQL Managed Instances inside a subnet. Teams use it when teams deploy, scale, move, or delete managed instances and need to understand the hidden infrastructure boundary. In plain English, it gives operators a named control for clearer expectations for provisioning time, subnet planning, instance placement, and cleanup behavior instead of leaving the decision hidden in a portal setting, script, or deployment file. Treat it as production-ready only when the owner, dependencies, permission boundary, monitoring signal, and rollback evidence are clear.
Azure SQL Managed Instance
intermediate
3 commands
Aliases: Managed instance virtual cluster, Azure SQL Managed Instance
Quick peek
Open full term page
AI and Machine Learning
premium
Azure OpenAI
Azure OpenAI provides OpenAI model capabilities through Azure resources, deployments, identity, networking, quota, and monitoring controls.
Azure OpenAI
intermediate
8 commands
Aliases: Azure OpenAI Service
Quick peek
Open full term page
Hybrid and Multicloud
premium
Azure Local
Azure Local is Microsoft’s distributed infrastructure solution that extends Azure capabilities to customer-owned environments for local VMs, containers, and selected Azure services through Azure Arc.
Distributed infrastructure
advanced
6 commands
Aliases: Azure Stack HCI, Azure Local infrastructure, Arc-enabled local infrastructure
Quick peek
Open full term page
Analytics
premium
Azure Synapse Analytics
Azure Synapse Analytics is Microsoft’s integrated analytics service for enterprise data warehousing, big data, data integration, and exploratory analytics.
Synapse Analytics
intermediate
6 commands
Aliases: No aliases yet
Quick peek
Open full term page
AI and Machine Learning
premium
Azure AI Foundry
Create a governed project boundary where AI teams can build agents, evaluations, files, and model deployments without unmanaged sprawl.; Compare, evaluate, and approve model deployments before a generative AI feature is
AI platform
fundamentals
5 commands
Aliases: AI Foundry, Microsoft Foundry, Foundry resource, Foundry project, Azure AI Foundry, azure ai foundry
Quick peek
Open full term page
Storage
premium
Azure Elastic SAN
A cloud-native Azure storage area network service that provides scalable, cost-effective, high-performance block storage volumes for compute workloads.
Block storage
intermediate
5 commands
Aliases: Elastic SAN
Quick peek
Open full term page
Storage
premium
Azure file share
An Azure file share is a managed cloud share hosted by Azure Files. It behaves like a network file share, but Microsoft runs the storage service instead of your team maintaining file servers, disks, operating systems, and failover.
Files, queues, and tables
fundamentals
5 commands
Aliases: Azure Files share
Quick peek
Open full term page
Migration
premium
Azure Migrate
Azure Migrate helps organizations discover, assess, plan, and migrate servers, databases, web apps, virtual desktops, and other workloads to Azure with reduced risk.
Migration planning
intermediate
5 commands
Aliases: Migrate, Azure Migrate hub, migration assessment
Quick peek
Open full term page
Migration
premium
Azure Site Recovery
Azure Site Recovery helps provide disaster recovery by managing replication, failover, and failback for supported workloads.
Disaster recovery
fundamentals
5 commands
Aliases: ASR, Azure Site Recovery, Azure disaster recovery, Site Recovery
Quick peek
Open full term page
AI and Machine Learning
premium
Azure AI Search service
Azure AI Search service is the Azure resource that hosts Azure AI Search indexes, indexers, skillsets, keys, capacity, networking, and query endpoints.
AI platform and search
intermediate
4 commands
Aliases: AI Search resource, AI Search service, Azure Search service, Search service, search service
Quick peek
Open full term page
AI and Machine Learning
premium
Azure AI Translator
A cloud-based machine translation service for translating text and documents across supported languages through REST APIs and client libraries.
AI services
intermediate
4 commands
Aliases: Azure Translator, Document Translation, Text Translation, Translator
Quick peek
Open full term page
Hybrid and Multicloud
premium
Azure Arc-enabled server
A Windows or Linux physical server or virtual machine outside Azure that is connected to Azure Arc and managed as an Azure resource.
Hybrid management
fundamentals
4 commands
Aliases: Arc-enabled server, Azure Arc server, connected machine, hybrid machine
Quick peek
Open full term page
Networking
premium
Azure Bastion
A fully managed Azure service that provides secure RDP and SSH access to virtual machines without exposing VM public IP addresses.
Remote access
fundamentals
4 commands
Aliases: Azure Bastion host, Bastion, RDP SSH over Bastion, managed jump box
Quick peek
Open full term page
Management and Governance
premium
Azure data plane
The Azure data plane is the part of Azure you use after a resource exists, when you interact with the capability that resource provides. Microsoft Learn anchors this term in Azure control plane and data plane, but this field-manual definition is intentionally wider than an older short glossary entry because the page must teach what to inspect, what can break, who owns the decision, and which evidence proves the Azure environment is behaving as intended. In field use, start with the technical boundary: Technically, data-plane operations are service-specific operations against.
Azure Resource Manager
fundamentals
4 commands
Aliases: No aliases yet
Quick peek
Open full term page
Compute
premium
Azure Update Manager
Azure Update Manager is a unified service for managing and governing operating system updates across Azure virtual machines, on-premises servers, and other cloud servers connected through Azure Arc.
Virtual Machines
intermediate
4 commands
Aliases: No aliases yet
Quick peek
Open full term page
DevOps
premium
Environment in Azure DevOps
An Azure DevOps environment is a logical collection of resources that a pipeline can target for deployments, approvals, checks, and deployment history.
Azure Pipelines
fundamentals
4 commands
Aliases: environment in azure devops
Quick peek
Open full term page
Storage
field-manual-complete
Azure Files
Azure Files provides managed SMB and NFS file shares in Azure for applications, users, containers, and virtual machines that still need file-system access.
Managed file shares
fundamentals
5 commands
Aliases: Azure file shares, Azure managed file shares, cloud file shares
Quick peek
Open full term page
AI and Machine Learning
field-manual-complete
Azure OpenAI private endpoint
An Azure OpenAI private endpoint gives your model-calling applications a private network path to an Azure OpenAI resource. Instead of reaching the resource over its public endpoint, approved clients in a virtual network resolve the service name to a private IP address. This is useful for sensitive prompts, internal copilots, and retrieval systems that must stay inside controlled network boundaries. It still requires identity, DNS, and application configuration to be correct. Test callers before lockdown.
Azure OpenAI
intermediate
5 commands
Aliases: OpenAI private endpoint, Azure OpenAI Private Link, private model endpoint, private endpoint for Azure OpenAI
Quick peek
Open full term page
Databases
field-manual-complete
Azure SQL private endpoint
A database capability or setting in Azure SQL Database that helps teams store, query, scale, secure, and recover application data with clearer ownership, safety, and operational context.
Azure SQL Database
intermediate
5 commands
Aliases: Azure SQL private endpoint, azure-sql-private-endpoint, azure-sql-database, azure-sql-logical-server, private-endpoint, private-dns-zone, vnet-peering, managed-identity, app-service-vnet-integration, azure-sql-firewall-rule, service-endpoint
Quick peek
Open full term page
AI and Machine Learning
field-manual-complete
Private endpoint for Azure OpenAI
A private endpoint for Azure OpenAI is the private network doorway to an Azure OpenAI resource. Your application still calls the Azure OpenAI endpoint and authenticates normally, but from approved networks the name can resolve to a private IP instead of a public address. It is commonly used for enterprise chat, RAG, summarization, and agent workloads that handle sensitive prompts or documents. It protects the network path, not the prompt content by itself, so identity, logging, safety, and data controls still matter.
Azure OpenAI
advanced
5 commands
Aliases: No aliases yet
Quick peek
Open full term page
AI and Machine Learning
premium
Azure OpenAI resource
An Azure OpenAI resource is the Azure control-plane boundary that hosts deployments, endpoints, access, networking, and billing context.
Azure OpenAI
fundamentals
12 commands
Aliases: No aliases yet
Quick peek
Open full term page
AI and Machine Learning
premium
Azure OpenAI Service
Azure OpenAI Service provides managed access to OpenAI model capabilities through Azure endpoints and enterprise controls.
Generative AI
fundamentals
11 commands
Aliases: Azure OpenAI
Quick peek
Open full term page
Management and Governance
premium
Azure subscription
An Azure subscription is a management, billing, and scale unit for Azure resources.
Azure scope
fundamentals
7 commands
Aliases: subscription
Quick peek
Open full term page
Containers
premium
Event-driven scale rule
An Event-driven scale rule is a Container Apps scaling configuration that uses event-source metrics to decide how many replicas or job executions to run. Teams use it to connect queue length, event backlog, HTTP load, Kafka lag, or other scaler metadata to automatic scaling decisions. It is not the event source itself, a Kubernetes HPA object, a fixed replica count, or a complete guarantee that the application processes events correctly. In production, confirm scaler type, metadata names, authentication method, min and max replicas, polling interval, cooldown behavior, event source metrics, container revision, and downstream capacity before treating the design as.
Azure Container Apps
intermediate
6 commands
Aliases: KEDA scale rule, Container Apps event scale rule, custom scale rule
Quick peek
Open full term page
Web
premium
App Service scale rule
App Service scale rule is an autoscale rule or automatic scaling configuration that changes App Service capacity when metric thresholds, schedules, or platform load signals require more or fewer instances. Use it to reason about App Service behavior, validate configuration with CLI, and prevent hidden production impact from networking, scaling, recovery, security, or observability changes.
App Service Scaling
intermediate
5 commands
Aliases: No aliases yet
Quick peek
Open full term page
AI and Machine Learning
premium
Azure AI Search index
An Azure AI Search index is the place where your application searches. It is not just a pointer to a database or blob container. It is a separate searchable structure with documents, fields, and rules for how text, filters, facets, semantic ranking, and vectors behave. If the index schema is wrong, the search experience feels wrong even when the source data is good. Developers and operators use indexes to make.
AI platform and search
intermediate
5 commands
Aliases: Azure AI Search index, search index, AI Search index, azure-ai-search-index
Quick peek
Open full term page
AI and Machine Learning
premium
Azure AI Search indexer
An Azure AI Search indexer is the automated worker that fills a search index from another data source. Instead of your application pushing every document into Azure AI Search, the indexer pulls from places such as Blob Storage, Azure SQL, Cosmos DB, or Data Lake Storage. It can map fields, detect changes, crack documents, and run enrichment skills before writing searchable documents. It is useful when source data changes regularly.
AI platform and search
intermediate
5 commands
Aliases: Azure AI Search indexer, search indexer, indexer, azure-ai-search-indexer
Quick peek
Open full term page
Analytics
premium
Azure Data Explorer
A fully managed, high-performance analytics service for near-real-time analysis of large telemetry, log, event, and time-series datasets.
Real-time analytics
intermediate
5 commands
Aliases: ADX, Kusto
Quick peek
Open full term page
Databases
premium
Azure Database for MySQL Flexible Server
A fully managed Azure database service for MySQL workloads with configurable compute, storage, backups, networking, maintenance, and high availability options.
Managed MySQL
intermediate
5 commands
Aliases: MySQL Flexible Server
Quick peek
Open full term page
Analytics
premium
Azure integration runtime
Azure integration runtime is the compute infrastructure used by Azure Data Factory and Synapse pipelines to move data, dispatch activities, and connect across network environments.
Data integration compute
intermediate
5 commands
Aliases: Integration Runtime, IR, ADF integration runtime
Quick peek
Open full term page
Storage
premium
Azure Managed Lustre
Azure Managed Lustre is a managed parallel file system for high-performance computing and AI workloads that need scalable, low-latency file storage in Azure.
Parallel file systems
advanced
5 commands
Aliases: Managed Lustre, Azure Managed Lustre File System, AMLFS
Quick peek
Open full term page
AI and Machine Learning
premium
Azure OpenAI managed identity
Azure OpenAI managed identity uses Microsoft Entra identities so Azure workloads can call model endpoints without stored keys.
Azure OpenAI
intermediate
5 commands
Aliases: No aliases yet
Quick peek
Open full term page
Databases
premium
Azure SQL active geo-replication
Azure SQL active geo-replication creates readable secondary databases in other regions for database-level disaster recovery and failover.
Azure SQL Database
intermediate
5 commands
Aliases: Azure SQL active geo-replication, SQL geo-replication, active geo-replication, geo-secondary database
Quick peek
Open full term page
No glossary terms matched that search.
Try a service name, acronym, command group, or category such as RBAC , az group , App Service , Application Insights , Databases , or Azure AI Search .
Clear filters and show matches
Reset search