Topic 1 · Question 20

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 one virtual machine and two availability zones in your strategy.
Does the solution meet the goal?

A. Yes

B. No

Top comment

Community votes:B · 11 (73%)A · 3 (20%)U · 1 (7%)

kate_py▲ 47Highly votedJuly 06, 2021 08:19 pm

For all Virtual Machines that have TWO or more instances deployed across two or more Availability Zones in the same Azure region, we guarantee you will have Virtual Machine Connectivity to at least one instance at least 99.99% of the time.
"SLA for Virtual Machines Last updated: July 2020", https://azure.microsoft.com/en-us/support/legal/sla/virtual-machines/v1_9/

That was cited in: https://docs.microsoft.com/en-us/azure/availability-zones/az-overview after '
With Availability Zones, Azure offers industry best 99.99% VM uptime SLA. '

2 more highly voted comments

BinuRaj▲ 12Highly votedSeptember 21, 2024 09:18 am

Answer correct.

SLA for Virtual Machines
Last updated: July 2020

For all Virtual Machines that have two or more instances deployed across two or more Availability Zones in the same Azure region, we guarantee you will have Virtual Machine Connectivity to at least one instance at least 99.99% of the time.
For all Virtual Machines that have two or more instances deployed in the same Availability Set or in the same Dedicated Host Group, we guarantee you will have Virtual Machine Connectivity to at least one instance at least 99.95% of the time.
For any Single Instance Virtual Machine using Premium SSD or Ultra Disk for all Operating System Disks and Data Disks, we guarantee you will have Virtual Machine Connectivity of at least 99.9%.
For any Single Instance Virtual Machine using Standard SSD Managed Disks for Operating System Disk and Data Disks, we guarantee you will have Virtual Machine Connectivity of at least 99.5%.
For any Single Instance Virtual Machine using Standard HDD Managed Disks for Operating System Disks and Data Disks, we guarantee you will have Virtual Machine Connectivity of at least 95%.

Cambo995▲ 8Highly votedSelected: BAugust 11, 2023 12:20 am

+2 VM on +2 AZ = 99.99%
+2 VM on 1 AZ = 99.95%

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