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Difficulty: HardCompute Virtualization Solutions

An energy exploration company is designing the Azure compute virtualization infrastructure for a seismic modeling platform. The platform consists of two primary workloads:

* Database Engine: A stateful, steady-state data store containing sensitive telemetry data. It must run on physical hardware isolated at the host level to meet compliance requirements. It requires a high memory-to-vCPU ratio and must maintain an uptime SLA of 99.99%.
* Simulation Pipeline: A massive batch-oriented parallel simulation runner. The pipeline is stateless, highly fault-tolerant, can resume from checkpoints, and must run at the lowest possible cost.

Which two compute virtualization configurations should you recommend to meet these requirements? (Select two.)

  1. Deploy the Database Engine on Azure Dedicated Hosts using Esv5-series virtual machines allocated across multiple Availability Zones.Answer
  2. Deploy the Simulation Pipeline on Azure Spot Virtual Machines using Dsv5-series instances.Answer
  3. C
    Deploy the Database Engine on Azure Spot Virtual Machines using Esv5-series instances with an eviction policy set to Deallocate.
  4. D
    Deploy the Database Engine on Azure Dedicated Hosts using Fsv2-series virtual machines allocated within a single fault domain.

Answer

Deploy the Database Engine on Azure Dedicated Hosts using Esv5-series virtual machines allocated across multiple Availability Zones, and deploy the Simulation Pipeline on Azure Spot Virtual Machines using Dsv5-series instances.
Deploying the Database Engine on Azure Dedicated Hosts with Esv5-series VMs across multiple Availability Zones guarantees host-level isolation, provides the required memory-to-vCPU ratio, and satisfies the 99.99% availability SLA. Deploying the Simulation Pipeline on Azure Spot VMs using Dsv5-series instances satisfies the requirement for the lowest cost compute, since the workload is stateless and capable of handling capacity eviction.

Step-by-Step Solution

1
Analyze host isolation and memory requirements for the database workload.
Azure Dedicated Hosts are required to meet physical host isolation. E-series (such as Esv5) virtual machines must be used because they are memory-optimized.
This satisfies both the compliance requirement for hardware isolation and the technical requirement for a high memory-to-vCPU ratio.
2
Determine the high availability layout for the database engine to meet the SLA.
Distribute the Azure Dedicated Hosts across multiple Availability Zones.
Deploying dedicated hosts across multiple zones guarantees a 99.99% uptime SLA for the virtual machines running on those hosts.
3
Analyze the workload characteristics and cost requirements of the simulation pipeline.
Recommend Azure Spot VMs (e.g., using general-purpose Dsv5-series instances) for the Simulation Pipeline.
Since the simulation pipeline is stateless, fault-tolerant, and must run at the lowest possible cost, Spot VMs provide the optimal cost-saving mechanism despite their eviction model.

Key Concept

Selecting and configuring Azure compute virtualization components (Dedicated Hosts, Spot VMs, and VM series) to meet physical isolation, high availability SLA, hardware-profile, and cost constraints.
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Topics

Compute Virtualization Solutions

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