Role

Database Administrator

Real interview questions with expert answers, plain-English explanations, and practical examples. (6 questions)

Salesforce Database Administrator Performance Optimization

A critical database query is consistently slow. How would a Database Administrator diagnose the root cause and implement an index-based solution?

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VMware Database Administrator Performance Optimization

How do you approach optimizing slow database queries, and what tools do you use to diagnose them?

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Mphasis Database Administrator Databases

Beyond B-trees: explain specialized indexing strategies like hash, bitmap, or spatial indexes, and when would a DBA choose each?

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ServiceNow Database Administrator Databases

When would you choose a NoSQL database over a relational database, and what are the key considerations for each?

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Honeywell Database Administrator Databases

How do database replication strategies (e.g., master-slave, multi-master) differ, and what are their trade-offs for high availability and disaster recovery?

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Oracle Database Administrator Databases

How does a B-tree index actually speed up a query, and when does it stop helping?

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