GATE CSE 2014 Set 3 | Functional Dependencies and Normalization Question 23 | Database Management System

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GATE CSE 2014 Set 3

MCQ (Single Correct Answer)

-0.3

A prime attribute of a relation scheme $$R$$ is an attribute that appears

In all candidate keys of $$R$$

In some candidate key of $$R.$$

In a foreign key of $$R.$$

Only in the primary key of $$R.$$

GATE CSE 2012

MCQ (Single Correct Answer)

-0.3

Which of the following is TRUE?

Every relation in $$3NF$$ is also in $$BCNF$$

A relation $$R$$ is in $$3NF$$ if every non-prime attribute of $$R$$ is fully functionally dependent on every key of $$R$$

Every relation in $$BCNF$$ is also in $$3NF$$

No relation can be in both $$BCNF$$ and $$3NF$$

GATE CSE 2005

MCQ (Single Correct Answer)

-0.3

A table has fields, $$F1, F2, F3, F4, F5,$$ with the following functional dependencies:
$$F1 \to F3.\,F2 \to F4.\,\,\,\left( {F1\,.\,F2} \right) \to F5$$ in terms of Normalization, this table is in

$$1NF$$

$$2NF$$

$$3NF$$

None of these

GATE CSE 2005

MCQ (Single Correct Answer)

-0.3

Which one of the following statements about normal forms is FALSE?

$$BCNF$$ is stricter than $$3NF$$

Lossless, dependency $$-$$ preserving decomposition into $$3NF$$ is always possible

Lossless, dependency - preserving decomposition into $$BCNF$$ is always possible

Any relation with two attributes is in $$BCNF$$

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Theory of Computation

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

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

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

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Boolean Algebra K Maps Combinational Circuits Number Systems Sequential Circuits

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

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Arrays Stacks and Queues Linked List Trees Graphs Hashing

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

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

Programming Languages

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

Computer Organization

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