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Answer: Modify the existing subnet range to 172.16.20.0/24.
The correct answer is A: Modify the existing subnet range to 172.16.20.0/24. By changing the subnet range to 172.16.20.0/24, you will expand the range of available IP addresses in the subnetwork, allowing you to add new VMs without needing to perform additional configuration steps like creating new VPC networks or enabling VPC Peering. This solution uses the minimum number of steps to resolve the issue of having no private IP addresses available in the subnetwork.
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Your Dataproc cluster is currently operating within a single Virtual Private Cloud (VPC) network and a specific subnetwork that has an IP address range of 172.16.20.128/25. Given that all private IP addresses within this subnetwork are already in use, you need to integrate additional virtual machines (VMs) into the environment to communicate with the existing cluster. What is the most efficient approach to achieve this, involving the least number of steps?
A
Modify the existing subnet range to 172.16.20.0/24.
B
Create a new Secondary IP Range in the VPC and configure the VMs to use that range.
C
Create a new VPC network for the VMs. Enable VPC Peering between the VMs' VPC network and the Dataproc cluster VPC network.
D
Create a new VPC network for the VMs with a subnet of 172.32.0.0/16. Enable VPC network Peering between the Dataproc VPC network and the VMs VPC network. Configure a custom Route exchange.