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Job Interview Questions and Answers Directory

Search and filter frequently asked interview questions across technical, programming, and behavioral domains. Tailor your interview preparation by difficulty for freshers or experienced developers (3 available).

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DBMS Easy technical

Q1. Why use a DBMS instead of storing data in files?

A file system stores bytes in files and directories but knows nothing about their structure. A DBMS adds a layer that understands records, types, relationships and constr...

1 Answer

DBMS Medium technical

Q2. What does ACID mean in the context of transactions?

ACID describes the guarantees of a transaction, a unit of work that either completes fully or not at all. - Atomicity: all statements commit or all roll back. Implemented...

1 Answer

SQL & Databases Medium technical

Q3. Valid properties of a transaction?

The four foundational properties that guarantee database transactions are processed reliably are known as **ACID**: 1. **Atomicity**: "All or nothing." If any statement w...

1 Answer