Load Balancer for Ten Servers | Dataford Interview Questions

Design a load balancer for 10 servers and write corresponding test cases

Asked in the coding round stage. Production-ready code expected.

Implement route_requests(requests, healthy_servers). The input contains request identifiers and a Boolean list of exactly 10 servers, where index i identifies server i. Route requests in round-robin order across healthy servers only. Return a list containing the selected server index for each request, or -1 when no server is healthy. The first request starts at server 0; after reaching server 9, scheduling wraps to server 0.

Constraints

0 <= len(requests) <= 1000
len(healthy_servers) == 10
Request identifiers are unique strings

Function Signature

def route_requests(requests, healthy_servers):

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Problem

Design a load balancer for 10 servers and write corresponding test cases

Asked in the coding round stage. Production-ready code expected.

Constraints

0 <= len(requests) <= 1000
len(healthy_servers) == 10
Request identifiers are unique strings

Function Signature

def route_requests(requests, healthy_servers):

Your question is Load Balancer for Ten Servers. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.