GateQA — Free GATE CS Preparation Platform

GateQA is a free GATE CS preparation platform featuring 3,500+ previous-year questions (1987–2026), 36,000+ aptitude questions, subject-wise and year-wise mock tests, performance analytics, and full offline support. Practice Operating Systems, Algorithms, DBMS, Computer Networks, Theory of Computation, Discrete Mathematics, Compiler Design, Digital Logic, and more.

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GATE CS Subject

Database Management Systems GATE CS Questions

Overview & Analysis

Database Management Systems (DBMS) is one of the most scoring technical sections in GATE CS, typically yielding 5 to 7 marks. The syllabus ranges from conceptual schema designs to concrete query languages and transactional safety.

GATE questions regularly assess SQL queries, Relational Algebra expressions, schema Normalization (up to BCNF/4NF), and transactional scheduling properties like conflict serializability and deadlock handling.

Frequently Asked Questions (FAQ)

Q: How do I determine the normal form of a relation for GATE?

A: Find all candidate keys using functional dependency closures. Check the dependencies against the definitions of 1NF, 2NF, 3NF, and BCNF to identify the highest normal form of the schema.

Q: What is conflict serializability in GATE DBMS?

A: A schedule is conflict serializable if it is conflict equivalent to a serial schedule. You can test this by building a precedence graph of conflicting operations; if the graph contains no cycles, the schedule is conflict serializable.

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