GATE CSE 2016 Set 1 | Er Diagrams Question 6 | Database Management System

GATE CSE 2016 Set 1

MCQ (Single Correct Answer)

-0.3

Which of the following is NOT a superkey in a relational schema with attributes $$V, W, X, Y, Z$$ and primary key $$V Y?$$

$$VXYZ$$

$$VWXZ$$

$$VWXY$$

$$VWXYZ$$

GATE CSE 2014 Set 2

Numerical

-0

Given an instance of the STUDENTS relation as shown below: GATE CSE 2014 Set 2 Database Management System - Er Diagrams Question 14 English

For (StudentName, StudentAge) to be a key for this instance, the value $$X$$ should NOT be equal to ________.

Your input ____

GATE CSE 2013

MCQ (Single Correct Answer)

-0.3

An index is clustered, if

It is on a set of fields that form a candidate key.

It is on a set of fields that include the primary key.

The data records of the file are organized in the same order as the data entries of the index.

The data records of the file are organized not in the same order as the data entries of the index.

GATE CSE 2012

MCQ (Single Correct Answer)

-0.3

Given the basic $$ER$$ and relational models, which of the following is INCORRECT?

An attribute of an entity can have more than one value

An attribute of an entity can be composite

In a row of a relational table, an attribute can have more than one value

In a row of a relational table, an attribute can have exactly one value or a NULL value

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GATE CSE Subjects

Theory of Computation

Undecidability Finite Automata and Regular Language Push Down Automata and Context Free Language Recursively Enumerable Language and Turing Machine

Operating Systems

Process Concepts and Cpu Scheduling Synchronization and Concurrency File System IO and Protection Deadlocks Memory Management

Algorithms

Complexity Analysis and Asymptotic Notations Searching and Sorting Divide and Conquer Method Greedy Method P and NP Concepts Dynamic Programming

Digital Logic

Number Systems Boolean Algebra K Maps Combinational Circuits Sequential Circuits

Database Management System

Er Diagrams Functional Dependencies and Normalization Structured Query Language Relational Algebra Transactions and Concurrency File Structures and Indexing

Data Structures

Trees Hashing Arrays Linked List Graphs Stacks and Queues

Computer Networks

Network Security Data Link Layer and Switching Application Layer Protocol Network Layer Routing Algorithm Concepts of Layering Lan Technologies and Wi-Fi TCP UDP Sockets and Congestion Control

Software Engineering

Compiler Design

Lexical Analysis Parsing Syntax Directed Translation Code Generation and Optimization

Web Technologies

General Aptitude

Numerical Ability Logical Reasoning Verbal Ability

Discrete Mathematics

Mathematical Logic Probability Set Theory & Algebra Combinatorics Linear Algebra Graph Theory Calculus

Programming Languages

Basic of Programming Language Function and Recursion Pointer and Structure in C

Computer Organization

Computer Arithmetic Memory Interfacing Pipelining Machine Instructions and Addressing Modes Alu Data Path and Control Unit IO Interface Secondary Memory