Exam AZ-900 topic 1 question 21 discussion

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%.

The correct answer is B. The correct solution would have a minimum of 2 for both.

Availability Zones (AZs) are physically separate locations within an Azure region. Deploying VMs in two separate availability zones provides zone-level redundancy and higher availability. The SLA for VMs deployed in two availability zones with Azure Load Balancer is 99.99% availability (4 nines). Using one VM (even in one zone) gives SLA of around 99.9%, which is lower than 99.99%. Using two VMs in a single availability zone only increases fault tolerance against VM-level failure, but not zone failure.

Yes, According to Microsoft official documentation , to achieve higest fault tolerance and availability , 99.99% of SLA is requried in a specific region, for that the minimum configuration requried is 2 VM in 2 availability zones.

to ensure 99.99 SLA you need 2 VMs in 2 availability zones

yes correct

The given solution meets the 99.99% availability requirement while using the minimum required VMs and Availability Zones.

a - yes SLA for Virtual Machines | Azure

orrekte Lösung: ✅ Mindestens zwei virtuelle Maschinen in zwei verschiedenen Verfügbarkeitszonen ✅ Azure Load Balancer, um den Datenverkehr zwischen den VMs zu verteilen

Having Two Vms and Two Availability ZOne ensures no downtime and SLA is 99.9%.

A. Yes Deploying two virtual machines across two availability zones can meet the goal of achieving 99.99% availability. Here’s why: Availability Zones: Using two availability zones provides high availability by ensuring that if one zone experiences a failure, the other zone can continue to operate, thereby reducing the risk of total service disruption. Virtual Machines: With two virtual machines spread across these availability zones, you achieve redundancy and fault tolerance. If one virtual machine fails, the other can handle the workload, ensuring continuous operation. This setup meets the requirements for high availability with minimal resource use, aligning with the goal of 99.99% availability. So, the correct answer is A. Yes.

Its A the right answer

yes 2 vm and 2 Available zone

it's A Two virtual machines and two availability zones meet the 99.9%

Having 2 VMs at two different locations/availability zones solves the problem.

Answer is A

A - 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.