Deploying a Critical LOB Application in Azure
Question
Note: The question is included in a number of questions that depicts the identical set-up. However, every question has a distinctive result. Establish if the solution satisfies the requirements.
You are tasked with deploying a critical LOB application, which will be installed on a virtual machine, to Azure.
You are informed that the application deployment strategy should allow for a guaranteed availability of 99.99 percent. You need to make sure that the strategy requires as little virtual machines and availability zones as possible.
Solution: You include two virtual machines and two availability zones in your strategy.
Does the solution meet the goal?
Answers
Explanations
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A. B.A
https://docs.microsoft.com/en-us/azure/availability-zones/az-overviewThe provided solution, which includes two virtual machines and two availability zones, does meet the goal of achieving a guaranteed availability of 99.99 percent with minimal virtual machines and availability zones.
To understand why this solution meets the goal, let's break it down:
Virtual Machines: By deploying two virtual machines, you have redundancy in case one of the virtual machines experiences an issue or becomes unavailable. This redundancy ensures high availability because if one virtual machine fails, the other can continue running the LOB application, minimizing downtime.
Availability Zones: Azure Availability Zones are physically separate datacenters within an Azure region. They are designed to provide additional resilience and fault tolerance. By including two availability zones in the strategy, you are distributing your virtual machines across two separate datacenters, ensuring that if one availability zone experiences an outage or maintenance, the other availability zone can continue to serve your application.
The combination of two virtual machines and two availability zones helps to minimize the impact of failures and increases the availability of your LOB application. This redundancy at both the virtual machine and datacenter levels provides a higher level of fault tolerance, reducing the chances of downtime and meeting the goal of 99.99 percent guaranteed availability.
Therefore, the solution satisfies the requirements and the correct answer is A. Yes.
The proposed solution for deploying a critical LOB application on Azure includes two virtual machines and two availability zones to ensure a guaranteed availability of 99.99 percent while using as little virtual machines and availability zones as possible.
An availability zone is a physically separate data center within an Azure region that is designed to be highly available and fault-tolerant. By deploying virtual machines in different availability zones, you can ensure that your application remains available even in the event of a failure in one availability zone.
In this scenario, the use of two virtual machines and two availability zones can meet the requirement of a guaranteed availability of 99.99 percent. This is because deploying virtual machines across two availability zones provides a level of redundancy and fault tolerance that can significantly reduce the risk of downtime or service interruptions. In the event of a failure in one availability zone, the other availability zone can continue to provide service, ensuring the application remains available.
Therefore, the proposed solution meets the goal of requiring as little virtual machines and availability zones as possible while ensuring a guaranteed availability of 99.99 percent. The answer is "A. Yes."
