1
GATE CSE 2024 Set 1
MCQ (More than One Correct Answer)
+2
-0

Let G be a directed graph and T a depth first search (DFS) spanning tree in G that is rooted at a vertex v. Suppose T is also a breadth first search (BFS) tree in G, rooted at v. Which of the following statements is/are TRUE for every such graph G and tree T?

A

There are no back-edges in G with respect to the tree T

B

There are no cross-edges in G with respect to the tree T

C

There are no forward-edges in G with respect to the tree T

D

The only edges in G are the edges in T

2
GATE CSE 2024 Set 1
MCQ (Single Correct Answer)
+1
-0.33

Let S be the specification : "Instructors teach courses. Students register for courses. Courses are allocated classrooms. Instructors guide students." Which one of the following ER diagrams CORRECTLY represents S?

GATE CSE 2024 Set 1 Database Management System - Er Diagrams Question 2 English 1 GATE CSE 2024 Set 1 Database Management System - Er Diagrams Question 2 English 2

A

(i)

B

(ii)

C

(iii)

D

(iv)

3
GATE CSE 2024 Set 1
MCQ (Single Correct Answer)
+1
-0.33

In a B+ tree, the requirement of at least half-full (50%) node occupancy is relaxed for which one of the following cases?

A

Only the root node

B

All leaf nodes

C

All internal nodes

D

Only the leftmost leaf node

4
GATE CSE 2024 Set 1
MCQ (More than One Correct Answer)
+1
-0

Which of the following statements about a relation $R$ in first normal form (1NF) is/are TRUE?

A

$R$ can have a multi-attribute key

B

$R$ cannot have a foreign key

C

$R$ cannot have a composite attribute

D

$R$ cannot have more than one candidate key

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