Nextsilicon Senior Software Engineer interview questions

scheme showing a TCP-only load balancer that receives incoming client requests and forwards each request/frame to one of several backend servers. How should a TCP load balancer process incoming frames and distribute them across multiple backend servers? Scheme description: Incoming traffic consists only of TCP requests. These requests first arrive at the load balancer. The load balancer processes each incoming frame using processFrame(frame* F, int numOfServers) and then forwards the frame using send2Server(frame* F). The load balancer has three backend targets: 10.0.0.1 ,10.0.0.2, 10.0.0.3 handleFrame(frame* F, int numOfServers) { processFrame(frame* F, int numOfServers); send2Server(frame* F); } implement processFrame(frame* F, int numOfServers); followup: what if a backend server fails?