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OS & Database Interview Questions

Operating systems, database internals, SQL, indexing, and system administration

50 Questions ~2 hours Essential Topics

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OS & Database Interview Topics

This page covers 50 essential operating systems and database interview questions across these key areas:

Operating Systems — processes, threads, scheduling, memory management, IPC
File Systems — inodes, journaling, permissions, virtual file systems
SQL Databases — joins, indexes, query optimization, ACID, normalization
NoSQL — document stores, key-value, column-family, CAP theorem
Transactions — isolation levels, deadlocks, MVCC, locking strategies
System Administration — bash scripting, cron, system calls, signals

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