Rdbms MCQ

Rdbms MCQ

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  • 02nd Nov, 2022

Practice RDBMS MCQ Questions to Test Your Knowledge 

RDBMS is an abbreviated form of Relational Database Management System. It is a computer program that manages, stores, and retrieves data in tabular format as in tables, which are made up of rows and columns. some of the most popular examples of RDBMS are SQL, MS SQL Server, IBM DB2, ORACLE, & Microsoft Access. RDBMS is one of the most widely used database management systems. It provides one of the lowest costs for entry and, once you’re up and running, provides great flexibility for reporting and analysis.

Finally, Practice here the Top 25+ RDBMS MCQ Questions, that checks your basic knowledge of Relational Database Management Systems. Choose the right answers to every question to check your final preparation for RDBMS exams & interviews. apart from this, you can also download below the RDBMS MCQ PDF, completely free.

Also, Read Best RDBMS Interview Questions.

Rdbms MCQ Quiz

1) A RDBMS consists a collection of ?

  • A. Tables
  • B.Fields
  • C.Records
  • D.Keys

2) The term attribute refers to a ___________ of a table.

  • A. Record
  • B.Tuple
  • C.Column
  • D.Key

3) In relational model, the row of table is known to be ?

  • A. Relation
  • B.Entity field
  • C.Tuple
  • D.Attribute

4) Address field of a person should not be part of primary key, since it is likely to ?

  • A. Dependent
  • B.Too long
  • C.Changed
  • D.Not changed

5) The relational model is concerned with?

  • A. Data structure and Data integrity
  • B.Data Manipulation
  • C.Both A and B
  • D.None of these
Download Free : Rdbms MCQ PDF

6) Which is the false statement from the following ?

  • A. A veiw is a named derived table
  • B.A name relation is variable
  • C.A veiw is a named reation and is virtual
  • D.None of these

7) The union of primary keys of the related entity sets becomes a -------------------------- of the relation ?

  • A. Super Key
  • B.Candidate key
  • C.Foreign key
  • D.Primary key

8) What is the full form of RDBMS ?

  • A. Right Database Management System
  • B.Relational Database Management system
  • C.Rapid Database Management System
  • D.Route Database Management System

9) In a relational Database a referential integrity constraint cab be specified with the help of ;

  • A. Primary Key
  • B.Secondry key
  • C.Foreign key
  • D.None of these

10) Primary key should be chosen such that its attribute values are never

  • A. Updated
  • B.Changed
  • C.Dependent
  • D.None of these

11) Query language is a language in which a user ?

  • A. Requests
  • B.Stores
  • C.Response
  • D.Represents

12) Minimal superkeys are called ?

  • A. Unique key
  • B.Superset key
  • C.Candidate key
  • D.Primary key

13) A table is a collection of relationships, there is a close correspondence between concept of :

  • A. Tables and instances
  • B.Table and variables
  • C.Tables and relations
  • D.Tables and Entries

14) Contents of a relation instance may change with time as relation :

  • A. Domain
  • B.Retrieved
  • C.Updated
  • D.Time

15) Query languages used in practice includes .............

  • A. Elements
  • B.Instances
  • C.Tuples
  • D.Fields

16) Logical design of database, is known to be

  • A. Database relation
  • B.Database instance
  • C.Database entity
  • D.Database Schema

17) A domain is atomic if elements of the domain are considered to be ____________ units.

  • A. Different
  • B.Indivisbile
  • C.Constant
  • D.Divisible

18) Which one of the following is a procedural language ?

  • A. Domain relational calculus
  • B.Tuple relational calculus
  • C.Query language
  • D.Relational algebra

19) The _______operation performs a set union of two “similarly structured” tables :

  • A. Intersect
  • B.Product
  • C.Union
  • D.Join

20) Which is the operator, takes the results of two queries and returns only rows that appear in both result sets ?

  • A. Union
  • B.Projection
  • C.Difference
  • D.Intersect

21) The_____ operation allows the combining of two relations by merging pairs of tuples, one from each relation, into a single tuple.

  • A. Select
  • B.Intersection
  • C.Union
  • D.Join

22) In many languages the case structure is called a ________ statement.

  • A. Jump
  • B.Branch
  • C.Switch
  • D.Selective

23) The database structure in a dbms is stored as a collection of files.

  • A. True
  • B.False

24) ________ is data about relationships.

  • A. Capital data
  • B.Content data
  • C.Connection data
  • D.Communication data

25) Relational databases represent relationships using ________.

  • A. metadata
  • B.foreign keys
  • C.file systems
  • D.unique identifiers

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