GateQA — Free GATE CS Previous Year Questions & Mock Tests

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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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Databases

GATE CSE 2004 | Question: 51

Subject: Databases
Paper: 2004
Consider the relation Student ( name , sex, marks), where the primary key is shown underlined, pertaining to students in a class that has at least one boy and one girl. What does…
Answer: D

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