#monitoring

6 monitoring interview questions, asked at Amazon, Apple, Google and 3 more companies. Last asked Sep 2026.

Design a lab machine fleet monitor with remote rebootSystem designDesign a service that watches a fleet of lab machines running compute workloads. Each machine polls the service for work; a work item names a payload the machine must download…
Last asked Sep 2026
Design a security monitoring frameworkSystem designDesign a framework that collects security signals such as logs and events from many systems, detects suspicious activity, raises alerts and supports investigations. Cover…
Last asked May 2026
Raise alerts from a streaming vmstat feedCodingRead the output of vmstat as it streams, line by line, parse the columns, and print an alert whenever a chosen metric crosses a threshold. Keep it working on a stream that never…
Last asked Apr 2026
Classification model lifecycle and click-through predictionML designWalk through every step of building a classification model and the techniques at each step: framing and labels, data collection and cleaning, features, model choice, training…
Last asked Dec 2025
Design an LLM output quality validation systemAI system designDesign a system that checks the quality of a language model's answers before and after they reach users. Cover what "quality" means for the product, automatic checks and…
Last asked Dec 2025
Debug a model whose accuracy drops after deploymentML designA model that looked fine offline loses accuracy suddenly once it is in production. Walk through how you would debug the whole pipeline step by step: where you look first, how you…
Last asked Aug 2025