Five Azure VMs running Windows Server 2016 act as web servers behind an Azure Load Balancer named LB1. Ensure that each visitor is routed to the same web server for all their requests. What should you configure?

Configuring session persistence to "Client IP and protocol" ensures that all requests from a specific client IP address are directed to the same backend instance behind the load balancer. This is crucial for applications that maintain session state on the server, preventing users from losing their session data if subsequent requests are routed to a different server. "None" would distribute requests randomly, breaking session affinity. A health probe monitors backend instance availability but doesn't manage session routing. Setting the idle timeout affects how long a TCP connection is maintained without activity, not how requests from a client are routed to a specific server.