What is the main purpose of Azure Availability Zones?

a) To ensure high availability and fault tolerance by distributing resources across physically separate locations

b) To scale virtual machines on demand

c) To store large volumes of data

d) To automate resource deployments

Answer:

a) To ensure high availability and fault tolerance by distributing resources across physically separate locations

Explanation:

Azure Availability Zones are physically separate locations within an Azure region that are designed to provide high availability and fault tolerance for mission-critical workloads. By distributing resources across multiple zones, Availability Zones protect against datacenter failures and ensure continuous operation.

Each Availability Zone has its own independent power, cooling, and networking infrastructure, ensuring that services remain online even in the event of localized failures. Azure services, such as virtual machines and managed disks, can be deployed across zones to ensure redundancy and high availability.

Availability Zones are widely used for applications that require the highest levels of resilience and uptime, such as e-commerce platforms and financial services.

Reference:

Microsoft Azure Cloud MCQ (Multiple Choice Questions)