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Difficulty: MediumConfigure Azure Load Balancer

An organization has two standalone virtual machines, VM-App1 and VM-App2, deployed in a single virtual network. The virtual machines are not members of an availability set or a virtual machine scale set. You are tasked with implementing a new public load balancer to distribute internet traffic to both virtual machines. Which load balancer and public IP address configuration should you deploy?

  1. Deploy a Standard SKU load balancer and associate it with a Standard SKU public IP address.Answer
  2. B
    Deploy a Basic SKU load balancer and associate it with a Basic SKU public IP address.
  3. C
    Deploy a Standard SKU load balancer and associate it with a Basic SKU public IP address.
  4. D
    Deploy a Basic SKU load balancer and associate it with a Standard SKU public IP address.

Answer

Deploy a Standard SKU load balancer and associate it with a Standard SKU public IP address.
Deploying a Standard SKU load balancer associated with a Standard SKU public IP address is correct because the backend pool contains standalone virtual machines that are not part of an availability set. Standard load balancers support any virtual machines in a single virtual network as backend pool members and require Standard SKU public IP addresses.

Step-by-Step Solution

1
Analyze backend pool members.
The target virtual machines (VM-App1 and VM-App2) are standalone and not part of an availability set or scale set.
This configuration constraint determines which load balancer SKU can support the backend pool.
2
Evaluate load balancer SKU capabilities.
Basic SKU load balancers require backend virtual machines to be in a single availability set or scale set. Standard SKU load balancers support any virtual machines in a single virtual network, including standalone VMs.
To support VM-App1 and VM-App2 as backend members, a Standard SKU load balancer must be selected.
3
Determine the required public IP address SKU.
A Standard SKU public load balancer requires a Standard SKU public IP address for its frontend configuration.
SKUs of the load balancer and the public IP address must match.

Key Concept

Azure Load Balancer SKU compatibility and backend pool constraints
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Topics

Configure Azure Load Balancer

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