Protect Azure Services with Azure Availability Zones | AZ-900 Exam Prep

Azure Availability Zones for Protecting Azure Services

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Question

You need to identify the type of failure for which an Azure Availability Zone can be used to protect access to Azure services.

What should you identify?

Answers

Explanations

Click on the arrows to vote for the correct answer

A. B. C. D.

D

Availability zones expand the level of control you have to maintain the availability of the applications and data on your VMs. An Availability Zone is a physically separate zone, within an Azure region. There are three Availability Zones per supported Azure region.

Each Availability Zone has a distinct power source, network, and cooling. By architecting your solutions to use replicated VMs in zones, you can protect your apps and data from the loss of a datacenter. If one zone is compromised, then replicated apps and data are instantly available in another zone.

https://docs.microsoft.com/en-us/azure/virtual-machines/availability

The correct answer is D. an Azure data center failure.

An Azure Availability Zone is a high-availability offering that protects an application and data from data center failures. Azure Availability Zones are unique physical locations within an Azure region. Each Availability Zone is made up of one or more data centers equipped with independent power, cooling, and networking. By placing applications and data across multiple Availability Zones, you can protect them from data center failures.

Option A, a physical server failure, is not correct because Availability Zones are designed to protect against data center failures, not just server failures. A server failure within an Azure data center would not be prevented by using an Availability Zone.

Option B, an Azure region failure, is not correct because Availability Zones are not designed to protect against a failure of an entire Azure region. If an entire region were to go down, all Availability Zones within that region would be affected.

Option C, a storage failure, is also not correct because Availability Zones are not specifically designed to protect against storage failures. However, it is possible that an Availability Zone could help protect against a storage failure, as data is typically replicated across multiple physical disks and servers within an Availability Zone.