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This is a Medium difficulty Coding & Algorithms question, commonly asked during Technical Screen rounds at Google.

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This question is commonly asked for Software Engineer candidates at Google during technical interviews.

Design server allocation for multi-type nodes

Last updated: Mar 29, 2026

Quick Overview

This question evaluates understanding of scalable resource-allocation and matching systems, encompassing data-structure and index design, availability tracking, fragmentation minimization, concurrency control, and failure handling for large node pools.

Google

Sep 6, 2025, 12:00 AM

Software Engineer

Technical Screen

Coding & Algorithms

Design a service to manage a large pool (about 100, 000) of server nodes. Each node can satisfy multiple instance types; clients call getServer(reqNumOfServer, instanceTypes[]) to request servers that collectively meet the requested types, and returnServer(ids[]) to release them. Propose data structures and indexes for fast matching, availability tracking, fragmentation minimization, and scaling. Address concurrency, starvation, and failure handling.

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