Technology

Database Administrator Interview Questions

Prepare for your Database Administrator interview with these 8 commonly asked questions. Each includes expert tips on how to structure your answer.

2 Behavioral4 Technical2 Situational

Behavioral Questions

Describe a time you recovered from a database failure or data loss scenario.

Explain your backup strategy, recovery process, and how you prevented future occurrences.

Tell me about a database migration project you led.

Discuss planning, testing, rollback strategy, downtime management, and data validation.

Technical Questions

How do you approach database performance tuning for slow queries?

Cover query plan analysis, indexing strategies, statistics updates, and hardware considerations.

What factors do you consider when choosing between relational and NoSQL databases?

Cover data model, consistency needs, scale requirements, query patterns, and team expertise.

How do you implement and manage database replication?

Discuss synchronous versus asynchronous replication, failover, lag monitoring, and consistency.

What is your backup and disaster recovery strategy for critical databases?

Cover RPO/RTO objectives, backup types, testing restores, and geographic redundancy.

Situational Questions

A production database is running out of disk space during peak hours. What do you do?

Cover immediate actions (archiving, cleanup), monitoring, capacity planning, and long-term solutions.

A developer asks for direct production database access for debugging. How do you handle this?

Discuss read replicas, audit logging, least privilege, and alternative debugging approaches.

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