NEW
New Website Launch
Experience the best way to solve previous year questions with mock tests (very detailed analysis), bookmark your favourite questions, practice etc...
1

### GATE CSE 2002

From the following instance of a relation schema $$R(A, B, C),$$ we can conclude that:
A
A functionally determines $$B$$ and $$B$$ functionally determines $$C$$
B
A functionally determines $$B$$ and $$B$$ does not functionally determines $$C$$
C
$$B$$ does not functionally determines $$C$$
D
A does not functionally determine $$B$$ and $$B$$ does not functionally determine $$C$$
2

### GATE CSE 2001

$$R(A,B,C,D)$$ is a relation. Which of the following does not have a lossless-join, dependency preserving $$BCNF$$ decomposition?
A
$$A \to B,\,B \to CD$$
B
$$A \to B,\,B \to C.\,C \to D$$
C
$$AB \to C,\,C \to AD$$
D
$$A \to BCD$$
3

### GATE CSE 2000

Given the following relation instance
\eqalign{ & X\,\,\,\,\,Y\,\,\,\,\,Z \cr & \,\,1\,\,\,\,\,\,4\,\,\,\,\,\,2 \cr & \,\,1\,\,\,\,\,\,5\,\,\,\,\,\,3 \cr & \,\,1\,\,\,\,\,\,6\,\,\,\,\,\,3 \cr & \,\,3\,\,\,\,\,\,2\,\,\,\,\,\,2 \cr}

Which of the following functional dependencies are satisfied by the instance?

A
$$XY \to Z$$ and $$Z \to Y$$
B
$$YZ \to X$$ and $$Y \to Z$$
C
$$YZ \to X$$ and $$X \to Z$$
D
$$XZ \to Y$$ and $$Y \to X$$
4

### GATE CSE 1999

Consider the schema $$R = \left( {S\,\,T\,\,U\,\,V} \right)$$ and the dependencies $$S \to T,\,\,T \to U,\,\,U \to V$$ and $$V \to S$$ let $$R =$$ $$(R1$$ and $$R2)$$ be a decomposition such that $$R1 \cap R2 \ne \phi .$$ The decomposition is:
A
Not in $$2NF$$
B
In $$2NF$$ but not $$3NF$$
C
In $$3NF$$ but not in $$2NF$$
D
In both $$2NF$$ and $$3NF$$
Write for Us

Do you want to write for us? Help us by contributing to our platform.

### Joint Entrance Examination

JEE Main JEE Advanced WB JEE

### Graduate Aptitude Test in Engineering

GATE CSE GATE ECE GATE EE GATE ME GATE CE GATE PI GATE IN

NEET

Class 12