Exam AI-100 topic 1 question 13 discussion

A seems to be correct. See here - https://github.com/Azure/AKS/issues/52

To maintain the cluster configuration and avoid incurring compute costs when the Azure Kubernetes Service (AKS) cluster is not in use, the recommended solution would be to B. Downscale the cluster to zero nodes. By downscaling the cluster to zero nodes, you effectively stop all the virtual machines (VMs) in the cluster. This allows you to maintain the cluster configuration and associated resources (such as networking, storage, and security settings) without incurring any compute costs. When the cluster is not in use, scaling it down to zero nodes ensures that no resources are actively consuming compute capacity, which helps optimize costs. This approach allows you to easily bring the cluster back online when needed without the need to recreate or reconfigure it.

System pools must contain at least one node, and user node pools may contain zero or more nodes. See https://docs.microsoft.com/en-us/azure/aks/use-multiple-node-pools

Correct hai

Azure Batch AI is retired. https://docs.microsoft.com/en-us/previous-versions/azure/batch-ai/overview-what-happened-batch-ai As for the answer, Downscaling to 0 would probably remove the node configuration, whereas we have to keep the node configuration.

Azure Batch AI is retired since early 2019, I doubt this question still applies

downscaling(not autoscaling) to 0 nodes is now supported in aks. See this: https://github.com/Azure/AKS/issues/52#issuecomment-660897690

Currently AKS supports at least 1 system node and 0 or more user nodes. So, what should be the correct answer?

With the source provided, shouldn't it be 0 nodes? Or is the controle plane counted as a node?

Seems to be correct