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Zorluk: OrtaConfigure Azure Load Balancer

An administrator plans to deploy a public load balancer named LB1 in an Azure subscription. The subscription contains a virtual network named VNet1. VNet1 contains the following virtual machines:
- VM1: A standalone virtual machine
- VM2: A virtual machine deployed in Availability Zone 1
- VM3: A virtual machine deployed in Availability Zone 2

The administrator needs to configure LB1 to distribute inbound traffic across VM1, VM2, and VM3 by using a new public IP address named PublicIP1.

Which combination of SKUs for LB1 and PublicIP1 must the administrator use?

  1. A
    Basic SKU for LB1 and Basic SKU for PublicIP1
  2. Standard SKU for LB1 and Standard SKU for PublicIP1Cevap
  3. C
    Standard SKU for LB1 and Basic SKU for PublicIP1
  4. D
    Basic SKU for LB1 and Standard SKU for PublicIP1

Cevap

Standard SKU for LB1 and Standard SKU for PublicIP1
The correct configuration is to use the Standard SKU for both the load balancer and the public IP address. A Standard SKU load balancer is required because the backend pool contains virtual machines that are standalone and deployed across different availability zones (Basic SKU load balancers only support backend pools limited to a single availability set or virtual machine scale set). Additionally, Azure requires that the load balancer SKU matches the SKU of its associated frontend public IP address, meaning a Standard SKU public IP address must be used with the Standard SKU load balancer.

Adım Adım Çözüm

1
Analyze the backend pool virtual machine topology requirements.
The target backend pool contains a standalone VM (VM1) and zonal VMs in different availability zones (VM2 in Zone 1, VM3 in Zone 2).
Understanding backend pool constraints is critical because Basic SKU load balancers only support VMs within a single availability set or scale set, whereas Standard SKU load balancers support any VMs within the same virtual network.
2
Select the appropriate load balancer SKU based on backend pool support.
A Standard SKU load balancer (LB1) is selected.
Since the VMs are a mix of standalone and zonal deployments across different zones, a Basic SKU load balancer cannot be used.
3
Determine the required public IP address SKU for the load balancer's frontend configuration.
A Standard SKU public IP address (PublicIP1) must be used.
Azure enforces SKU matching between public load balancers and their frontend public IP configurations. Standard SKU load balancers require Standard SKU public IP addresses.

Anahtar Kavram

Azure Load Balancer SKU feature and configuration compatibility
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Konular

Configure Azure Load Balancer

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