• Azure availability zones

• • Physically separate datacenters within an Azure region
• • One or more datacenters equipped with independent power, cooling, and networking

• Azure region pairs

• • Always paired with another region within the same geography at least 300 miles away

Azure terminology and concepts

• App Service

• • HTTP-based service
• • build and host web-based solutions without managing infrastructure

• Microsoft Azure Marketplace

• • Online store
• • Hosts applications that are certified and optimized to run in Azure