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Zorluk: ZorConfigure Azure Load Balancer

An organization plans to host a public web application on two virtual machines named VM1 and VM2 in a single virtual network. VM1 is located in Availability Zone 1, and VM2 is located in Availability Zone 2. Both virtual machines require dedicated public IP addresses on their network interfaces to support direct administrative connections. You need to configure a public Azure Load Balancer to distribute incoming traffic to VM1 and VM2. Which configuration should you use for the load balancer and the virtual machine public IP addresses?

  1. A Standard SKU load balancer, and Standard SKU public IP addresses for the virtual machines.Cevap
  2. B
    A Standard SKU load balancer, and Basic SKU public IP addresses for the virtual machines.
  3. C
    A Basic SKU load balancer, and Basic SKU public IP addresses for the virtual machines.
  4. D
    A Basic SKU load balancer, and Standard SKU public IP addresses for the virtual machines.

Cevap

A Standard SKU load balancer, and Standard SKU public IP addresses for the virtual machines.
The correct configuration uses a Standard SKU load balancer paired with Standard SKU public IP addresses for the virtual machines. Standard SKU is necessary for the load balancer because the backend VMs are distributed across multiple Availability Zones, which Basic Load Balancers do not support. Standard SKU is also required for the virtual machines' public IP addresses because Standard Load Balancers do not allow backend pool members to have Basic SKU public IP addresses associated with their network interfaces.

Adım Adım Çözüm

1
Analyze the virtual machine deployment locations and determine the load balancer SKU requirement.
Since VM1 is in Availability Zone 1 and VM2 is in Availability Zone 2, a Standard SKU Load Balancer is required because the Basic SKU Load Balancer does not support backend pools containing VMs in different Availability Zones.
Basic Load Balancer backend pools are limited to virtual machines in a single availability set or a single virtual machine, whereas Standard Load Balancer supports zone-redundant configurations and zonal VMs.
2
Evaluate the virtual machine network interface public IP address requirements.
The virtual machines require dedicated public IP addresses. When using a Standard Load Balancer, all public IP configurations associated with backend pool members must match the load balancer's SKU.
Azure enforces SKU consistency across resources within a Standard Load Balancer's backend pool. Combining a Standard Load Balancer with Basic SKU public IPs on backend NICs is not allowed.
3
Combine SKU compatibility rules to identify the correct resource configuration.
Select the configuration that pairs a Standard SKU load balancer with Standard SKU public IPs for the virtual machines.
This configuration satisfies both the zone-span requirement and the SKU alignment constraint.

Anahtar Kavram

Azure Load Balancer SKU selection and backend pool resource SKU compatibility constraints
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Configure Azure Load Balancer

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