Microsoft Azure Fundamentals (AZ-900)Describe Azure architecture and servicesEasy
A global retail company is planning to deploy a new e-commerce application that must be highly available and resilient to regional outages. They need to ensure that their application remains accessible to customers even if an entire Azure region becomes unavailable. Which Azure architectural component is primarily responsible for achieving this level of resilience?
- AVirtual Networks
- BAvailability Zones
- CAzure Regions
- DResource Groups
Show answer & explanationAnswer & explanation
Correct answer: C. Azure Regions
Azure Regions are geographically dispersed datacenters that are designed to be independent of each other. Deploying an application across multiple Azure regions is the primary method to protect against entire region outages and ensure global availability and disaster recovery.
Why the other options are wrong
- A. Virtual Networks provide network isolation within a region, not cross-regional resilience.
- B. Availability Zones protect against datacenter-level failures within a single region, not entire region outages.
- D. Resource Groups are logical containers for resources and do not provide resilience against outages.
Azure Regions
An Azure Region is a set of datacenters deployed within a latency-defined perimeter and connected through a dedicated regional low-latency network.
- Geographically dispersed to allow for disaster recovery.
- Each region consists of multiple Availability Zones.
- Provides a scale unit for Azure services.
Memory trick: Think of Azure Regions as different continents; if one goes dark, the others keep shining.