A financial services provider is designing the Azure compute and storage infrastructure for two distinct workloads: | Workload | Core Requirements | Uptime SLA | Operational Mode | Storage Needs | | :--- | :--- | :--- | :--- | :--- | | **Workload 1** | Physical hardware isolation | 99.99\% | Continu

A financial services provider is designing the Azure compute and storage infrastructure fo… — Microsoft Azure Solutions Architect (AZ-305)

A financial services provider is designing the Azure compute and storage infrastructure for two distinct workloads:

Workload	Core Requirements	Uptime SLA	Operational Mode	Storage Needs
Workload 1	Physical hardware isolation	$99.99\%$	Continuous / Steady-state	Low-latency, high-throughput database transaction logs
Workload 2	Budget-constrained	None	Periodic / Interruptible	Standard storage

Which infrastructure strategy should you recommend to meet these requirements?

A
Host Workload 1 on Azure Spot Virtual Machines deployed across multiple Availability Zones using Premium SSD disks, and run Workload 2 on Azure Dedicated Hosts.
B
Host Workload 1 on Azure Dedicated Hosts deployed within a single Availability Zone using Premium SSD disks, and run Workload 2 on Azure Spot Virtual Machines.
Host Workload 1 on Azure Dedicated Hosts deployed across multiple Availability Zones using Premium SSD disks, and run Workload 2 on Azure Spot Virtual Machines.Answer
D
Host Workload 1 on Azure Dedicated Hosts deployed across multiple Availability Zones using Standard HDD disks, and run Workload 2 on Azure Spot Virtual Machines.

Answer

Host Workload 1 on Azure Dedicated Hosts deployed across multiple Availability Zones using Premium SSD disks, and run Workload 2 on Azure Spot Virtual Machines.

The correct strategy hosts the transaction database (Workload 1) on Azure Dedicated Hosts to satisfy the regulatory hardware isolation requirement. These hosts are distributed across multiple Availability Zones to achieve the

99.99\%

VM uptime SLA. The database transaction logs are placed on Premium SSDs to provide the necessary low-latency and high-throughput write performance. Finally, the non-critical, interruptible batch risk-modeling simulation (Workload 2) runs on Azure Spot VMs to maximize cost savings within strict budget limits.

Step-by-Step Solution

Address physical isolation and continuity requirements for Workload 1.

Azure Dedicated Hosts are selected because they provide physical servers dedicated to a single Azure subscription, satisfying compliance while running steady-state operations.

Regulatory compliance demands physical hardware isolation, which is uniquely solved by Dedicated Hosts rather than standard multi-tenant Azure VMs.

Select the availability and zone redundancy strategy for Workload 1.

Deploy the Dedicated Hosts across multiple Availability Zones.

An uptime SLA of

99.99\%

for virtual machines in Azure requires instances to be spread across two or more Availability Zones in the same region.

Choose the appropriate storage tier for database transaction logs.

Select Premium SSD storage.

Database transaction logs are highly sensitive to write latency. Standard HDDs do not meet the performance thresholds required, necessitating Premium SSDs or Ultra Disks.

Select the cost-effective compute solution for Workload 2.

Use Azure Spot Virtual Machines.

Workload 2 is periodic, budget-constrained, and interruptible, making it an ideal candidate for Spot VMs which offer deep discounts in exchange for being evictable.

Key Concept

Designing virtualized compute solutions in Azure with specific constraints around physical isolation, high availability, disk latency, and cost optimization.

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Step-by-Step Solution

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