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Zorluk: OrtaConfigure VMs for High Availability

Beacon Logistics is planning the infrastructure for a fleet monitoring system in the Canada Central region. The deployment includes two web servers: VM-Web1 and VM-Web2.

To meet the business requirements, the deployment must:
- Protect the web servers against datacenter-wide power or cooling outages.
- Provide a 99.99%99.99\% service level agreement (SLA) for the virtual machines.
- Load balance incoming traffic across VM-Web1 and VM-Web2.

Which of the following configuration options should you select to meet these requirements? Select two.

  1. Deploy VM-Web1 and VM-Web2 in separate Availability Zones in the Canada Central region.Cevap
  2. B
    Deploy VM-Web1 and VM-Web2 in a single Availability Set that spans multiple Availability Zones.
  3. Deploy a Standard Load Balancer to distribute traffic to the virtual machines.Cevap
  4. D
    Deploy a Basic Load Balancer to distribute traffic to the virtual machines.

Cevap

Deploying the virtual machines in separate Availability Zones and using a Standard Load Balancer to distribute traffic.
To protect against datacenter-wide outages and achieve a 99.99%99.99\% SLA, virtual machines must be distributed across separate Availability Zones in the region. Since the virtual machines will reside in different Availability Zones, a Standard Load Balancer must be used because it is zone-redundant and supports backend pools containing virtual machines from different zones.

Adım Adım Çözüm

1
Determine the high availability boundary required to protect against datacenter-wide failures.
Availability Zones must be used instead of Availability Sets because Availability Zones are physically separate datacenters within an Azure region, whereas Availability Sets only protect against hardware failures within a single datacenter.
The scenario requires protection against datacenter-wide power or cooling outages.
2
Select the correct VM placement strategy to meet the 99.99%99.99\% SLA requirement.
VMs must be deployed in separate Availability Zones to qualify for the 99.99%99.99\% SLA.
Azure offers a 99.99%99.99\% SLA for VMs when two or more instances are deployed across two or more Availability Zones in the same region, compared to 99.95%99.95\% for Availability Sets.
3
Choose the appropriate Load Balancer SKU to route traffic across the Availability Zones.
A Standard Load Balancer must be deployed.
Only the Standard SKU Load Balancer is zone-redundant and can load balance traffic across VMs located in different Availability Zones.

Anahtar Kavram

High availability design for virtual machines using Availability Zones and Standard Load Balancers to meet SLA and fault tolerance requirements.
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Konular

Configure VMs for High Availability

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