BackendHigh signal
Distributed Consensus
Also written as Paxos, Raft
Algorithms (like Paxos and Raft) that let multiple machines in a distributed system agree on a single value or decision, even if some machines fail or messages get delayed — the foundation under things like leader election.
Think of it like
Like a group of people in separate rooms, communicating only by passing notes, needing a reliable way to agree on one decision even if some notes get lost along the way.
Junior or senior?
Junior sounds like
Hasn't thought about what's coordinating the systems they rely on.
Senior sounds like
Can name a tool built on a consensus algorithm they've used, and what it was coordinating for their system.
Ask them
“Have you used a tool built on a consensus algorithm (like ZooKeeper or etcd)? What was it coordinating for your system?”