Data Science and Artificial Intelligence
2026 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE DA 2026 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 25–27 of 65. Imported answers require review unless explicitly marked reviewed.
Question 25
Open questionDAMSQ1 markNeeds review
You are given the following Pre-order and In-order traversals of a Binary Tree T with nodes E, F, G, P, Q, R, S.
Pre-order: P Q S E R F G
In-order: S Q E P F R G
Which of the following statements is/are true about the Binary Tree T?
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Open questionDAMSQ1 markNeeds review
Consider two relations r and s defined on the relational schemas R(A, B) and S(E, C), respectively. A is the primary key of R and E is a foreign key of S referencing A in R.
Which of the following operations will NEVER violate the foreign key constraint?
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Open questionDAMSQ1 markNeeds review
Let
be a function defined on
.Which of the following statements is/are correct?
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