Which of the following is a feature of an Azure virtual network?

Isolation and segmentation are core features of Azure virtual networks. Virtual networks allow you to create logically isolated sections of the Azure cloud, where you can deploy your resources. This isolation ensures that your network traffic is separate from other Azure customers' traffic. Within a virtual network, you can further segment your network into subnets, applying different security policies and routing rules to each segment, enhancing security and organization. Resource cost analysis is an Azure Cost Management feature, not a virtual network feature. Packet inspection is typically performed by Network Security Groups (NSGs) or Azure Firewall, which are services used with virtual networks, but not an inherent feature of the virtual network itself. Geo-redundancy is a data replication strategy for storage or databases, not a direct feature of an Azure virtual network.