ExpertMedium1 markMultiple Choice
AZ-305 · Question 36 · Domain 3.2: High Availability
You are designing the compute architecture for a highly available web application using Azure Virtual Machines.
The business requires a guaranteed SLA of 99.99% for VM uptime. You plan to deploy the VMs across multiple physical locations within the same Azure region to protect against datacenter-level failures (e.g., power, cooling, network).
Which TWO architectural components must you use to achieve this SLA? (Select TWO)
You are designing the compute architecture for a highly available web application using Azure Virtual Machines.
The business requires a guaranteed SLA of 99.99% for VM uptime. You plan to deploy the VMs across multiple physical locations within the same Azure region to protect against datacenter-level failures (e.g., power, cooling, network).
Which TWO architectural components must you use to achieve this SLA? (Select TWO)
Answer options:
A.
Availability Sets
B.
Availability Zones
C.
Standard Load Balancer
D.
Basic Load Balancer
E.
Proximity Placement Groups
How to approach this question
Match '99.99% SLA' and 'datacenter-level failures' to Availability Zones. Recognize that routing traffic across zones requires a Standard Load Balancer.
Full Answer
Availability Zones, Standard Load Balancer
To achieve a 99.99% SLA for Azure Virtual Machines and protect against datacenter-level failures, you must deploy the VMs across Availability Zones. Availability Zones are physically separate datacenters within an Azure region. To distribute incoming network traffic across these zone-redundant VMs, you must use an Azure Standard Load Balancer. The Basic Load Balancer does not support Availability Zones.
Common mistakes
Selecting Availability Sets. Availability Sets only provide 99.95% SLA and do not protect against a full datacenter failure.
Practice the full Azure Solutions Architect Expert AZ-305 Practice Exam 5
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