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Zorluk: KolayApplication Load Balancing and Delivery

An administrator is configuring a high-availability backend pool for a Standard SKU Azure Load Balancer. The backend pool contains several Azure Virtual Machines, but each virtual machine currently has a Basic SKU public IP address associated with its network interface. During deployment, the administrator encounters a validation failure. Which of the following configuration changes can resolve this validation mismatch? (Select two.)

  1. Upgrade the public IP addresses of the virtual machines to the Standard SKU.Cevap
  2. Remove the Basic SKU public IP addresses from the network interfaces of the virtual machines.Cevap
  3. C
    Associate the existing Basic SKU public IP addresses with a Standard SKU Azure NAT Gateway.
  4. D
    Create a Network Security Group rule to permit inbound traffic from the AzureLoadBalancer service tag.

Cevap

To resolve the validation failure, you must either upgrade the virtual machines' public IP addresses to the Standard SKU or remove the Basic SKU public IP addresses from their network interfaces entirely.
The Standard Azure Load Balancer requires that all virtual machines in its backend pool use Standard SKU public IP addresses or have no public IP addresses assigned at all. Therefore, upgrading the virtual machines' public IPs to the Standard SKU or removing the Basic SKU public IPs entirely satisfies the SKU alignment constraints and resolves the validation failure.

Adım Adım Çözüm

1
Identify the cause of the validation failure
The failure is due to a SKU mismatch between the Standard Load Balancer and the Basic SKU public IPs attached to the backend virtual machines.
Standard Azure Load Balancer backend pools require all member virtual machines to use either Standard SKU public IPs or no public IPs at all.
2
Determine valid resolution methods that maintain the Standard Load Balancer
We can either upgrade the public IPs to the Standard SKU to match the load balancer, or disassociate the Basic public IPs from the virtual machines.
These actions satisfy the Standard SKU constraints of the Azure Load Balancer.

Anahtar Kavram

Azure Load Balancer SKU alignment constraints
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