Database Administrator Interview Questions and Answers for 2025

Описание: Looking to land your dream job as a Database Administrator (DBA)? This video walks you through the most frequently asked DBA interview questions, complete with clear, concise answers and expert tips to help you succeed.

Perfect For:

Aspiring Database Administrators

Junior to Senior-Level DBAs

IT professionals switching to a DBA role

Anyone preparing for SQL Server, Oracle, MySQL, or PostgreSQL interviews

Topics Covered:

Core responsibilities of a DBA

SQL query optimization techniques

Backup and recovery strategies

Normalization vs. denormalization

Indexes, constraints, and performance tuning

Real-world scenario-based Q&A

Sample Questions:

What is normalization and why is it important?

How do you ensure database security?

Explain the difference between clustered and non-clustered indexes.

What steps would you take if a database crashes?

How do you monitor database performance?

Whether you're a beginner or experienced DBA, this video gives you the edge you need to stand out in interviews.

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1. What are the differences between clustered and non-clustered indexes?
2. Explain ACID properties in a database system.
3. How do you ensure database security?
4. What is normalization? Explain its different normal forms.
5. How do you perform database backup and recovery?
6. What is the difference between a primary key and a unique key?
7. Describe the steps to optimize a slow-running query.
8. How do you monitor database performance?
9. What is replication and how is it implemented?
10. What tools do you use for database administration?
11. A user complains the database is very slow—how would you troubleshoot?
12. What would you do if a database suddenly crashes?
13. How do you handle deadlocks in SQL Server or Oracle?
14. How do you migrate a database from one server to another?
15. Describe a time you resolved a major database issue under pressure.
16. How do you design a scalable database schema?
17. What are stored procedures, and when would you use them?
18. What are views, and how do they differ from tables?
19. How do you handle schema changes in a production environment?
20. What is the role of a data dictionary?
21. How do you handle working with developers and system admins?
22. Tell me about a time you successfully managed multiple databases/projects.
23. How do you stay updated with database technologies and best practices?
24. How do you prioritize tasks during peak workloads?
25. How do you document your work and ensure knowledge sharing?

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