This free practice quiz provides 50 Database Management System (DBMS) MCQs with answers and explanations, covering database architecture, records, fields, files, and core SQL standards. It is professionally curated for global computer science graduates, CompTIA candidates, academic assessments in the UK and USA, and technical job interview preparation.
Mastering database foundational concepts is critical before advancing to complex relational designs, indexing strategies, or production-level SQL administration. This practice set ensures alignment with global computer science curricula and modern enterprise tech stack validation requirements.
- ✔ Data and Information
- ✔ Database Fundamentals
- ✔ Records and Fields
- ✔ Database Files
- ✔ Database Objects
- ✔ SQL Basics
- ✔ Data Processing
- ✔ Database Terminology
Introduction to Database MCQs (Questions 1–10)
DATABASE FUNDAMENTALSThis initial technical evaluation screens essential paradigms of structured architectures including standard terminology for processing file groups, entities, and attributes.
1. A collection of raw facts and figures is called?
View Answer
Answer: A) Data
Data refers to raw facts and figures before they have been processed. Once data is processed into a meaningful form, it becomes information.
2. The manipulated and processed data is called?
View Answer
Answer: B) Information
Information is processed data that has meaning and can be used for decision-making or analysis.
3. Manipulation of data to achieve the required objectives and result is called?
View Answer
Answer: C) Both A and B
Data processing involves performing various operations on data to convert it into meaningful information.
4. A person's account, car, and house are considered?
View Answer
Answer: A) Object
An object is any person, place, thing, or event about which information is stored inside a database.
5. A collection of related fields is called?
View Answer
Answer: B) Record
A record consists of multiple related fields that describe a single entity, such as one student or one employee.
6. A record in a database is the information referring to a?
View Answer
Answer: D) All of the above.
A database record represents one complete entity. Depending on the database, that entity may be a person, product, customer, employee, order, event, or any other object whose information is stored.
7. Each item of information within a record is called?
View Answer
Answer: B) Field.
A field stores a single piece of information about an entity. For example, Student Name, Roll Number, and Email are individual fields within a student's record.
8. All records in a file have the same?
View Answer
Answer: B) Structure.
Every record in a database table follows the same structure or format, although the values stored in each field may differ.
9. A collection of data that consists of name, address and email of a person is called?
View Answer
Answer: B) Record.
A record combines several related fields that describe one entity. Name, address, and email together form a single person's record.
10. A logical grouping of characters is a?
View Answer
Answer: A) Field.
A field is made up of one or more characters that represent a single data item, such as a person's name, phone number, or ID.
Database Structure MCQs (Questions 11–20)
DATABASE STRUCTUREThis segment analyzes mapping models and ANSI SQL foundational definitions crucial for standard certification environments and international technical exams.
11. A field is to a record as:
View Answer
Answer: B) A column is to a row.
A field is a single attribute of a record, just as a column represents one attribute in a database table while a row represents the complete record.
12. A database containing all students in a class would store basic data of students in:
View Answer
Answer: D) File.
A file (or table in a modern DBMS) contains all student records. Each student has one record, and every record consists of several fields.
13. A database containing all students in a class would store Roll No of a student in:
View Answer
Answer: B) Field.
A Roll Number represents one specific attribute of a student, therefore it is stored as a field within the student's record.
14. A database containing all students in a class would store the information of individual students in:
View Answer
Answer: A) Record.
A record contains all the related information about one student, including Roll Number, Name, Address, and other details.
15. Which of the following is also known as data set?
View Answer
Answer: C) File.
A file is a collection of related records. In database terminology, a file is often referred to as a dataset because it stores related information together.
16. A set of related files created and managed by a DBMS is called?
View Answer
Answer: C) Database.
A database is an organized collection of related data managed by a Database Management System (DBMS), allowing efficient storage, retrieval, and updating of information.
17. Which of the following is an example of a database?
View Answer
Answer: D) All.
A phone book, library catalog, and student records all organize related information in a structured way, making them examples of databases.
18. SQL is a_____?
View Answer
Answer: B) Structured Language.
SQL (Structured Query Language) is the standard language used to create, retrieve, update, and manage data in relational databases.
19. SQL stands for:
View Answer
Answer: D) None.
The correct expansion of SQL is Structured Query Language, which is not listed among the given options. Therefore, "None" is the correct choice.
20. SQL can be used to:
View Answer
Answer: D) All.
SQL supports Data Definition Language (DDL), Data Manipulation Language (DML), and Data Query Language (DQL). It can create database objects, retrieve data, insert, update, and delete records.
Database Basics MCQs (Questions 21–30)
DATABASE BASICSThis intermediate section tests relational schema constraints, primary keys, and data-definition criteria optimized for enterprise-level operational standards.
21. In general a file is basically a collection of all related______?
View Answer
Answer: B) Records.
A file stores multiple related records. Each record contains information about one entity, while all records together form the complete file.
22. The collection of related information defined by its creator is called _____?
View Answer
Answer: C) Record.
A record contains all related information describing one object or entity. For example, all details of one employee together form a single record.
23. Which software is used to create and manage databases?
View Answer
Answer: A) DBMS.
A Database Management System (DBMS) provides tools for creating, storing, retrieving, updating, and securing databases.
24. Which of the following is a popular relational DBMS?
View Answer
Answer: A) MySQL.
MySQL is one of the world's most widely used relational database management systems.
25. Which key uniquely identifies every record in a table?
View Answer
Answer: B) Primary Key.
A primary key uniquely identifies every row in a table and prevents duplicate records.
26. A table is made up of:
View Answer
Answer: A) Rows and Columns.
Rows represent records, while columns represent fields or attributes in a database table.
27. Which key creates a relationship between two tables?
View Answer
Answer: B) Foreign Key.
A foreign key references the primary key of another table, establishing relationships between tables.
28. Which database model is most commonly used today?
View Answer
Answer: B) Relational.
Most modern databases, including MySQL, PostgreSQL, Oracle, and SQL Server, are based on the relational model.
29. Which SQL statement retrieves data from a table?
View Answer
Answer: C) SELECT.
The SELECT statement is used to retrieve one or more records from database tables.
30. Which SQL command adds a new record into a table?
View Answer
Answer: A) INSERT.
INSERT is used to add new rows of data into an existing database table.
Database Concepts MCQs (Questions 31–40)
DATABASE CONCEPTSThis advanced diagnostic block addresses critical transaction engineering properties (ACID), structural data integrity, normalization forms, and indexing mechanisms.
31. Which SQL statement is used to modify existing records?
View Answer
Answer: B) UPDATE.
The UPDATE statement modifies one or more existing records without creating new rows.
32. Which SQL statement removes records from a table?
View Answer
Answer: A) DELETE.
DELETE removes selected rows while keeping the table structure intact.
33. Which command permanently removes an entire table from a database?
View Answer
Answer: C) DROP.
DROP deletes both the table structure and all its data from the database.
34. Which constraint prevents duplicate values in a column?
View Answer
Answer: C) UNIQUE.
The UNIQUE constraint ensures that no duplicate values can exist in the specified column.
35. Which constraint does not allow NULL values?
View Answer
Answer: C) NOT NULL.
NOT NULL ensures that every record must contain a value for the specified column.
36. Which database object improves data retrieval speed?
View Answer
Answer: B) Index.
Indexes provide faster searching and sorting by reducing the amount of data that must be scanned.
37. Which database object stores a virtual table created from a query?
View Answer
Answer: B) View.
A view is a virtual table whose contents are generated from one or more SQL queries.
38. Which property ensures that data remains accurate and consistent?
View Answer
Answer: A) Data Integrity.
Data integrity guarantees that stored information remains correct, valid, and reliable throughout its lifecycle.
39. Which process reduces duplicate data in relational databases?
View Answer
Answer: B) Normalization.
Normalization organizes data efficiently and minimizes redundancy by dividing data into related tables.
40. Which property of a transaction ensures all operations are completed or none are applied?
View Answer
Answer: C) Atomicity.
Atomicity is one of the ACID properties. It guarantees that a transaction is treated as a single unit—either all operations succeed or the transaction is rolled back.
SQL & DBMS Practice MCQs (Questions 41–50)
SQL & DBMS PRACTICEThis final interactive section solidifies data manipulation queries, schema adjustments, and system security parameters built to align with professional hiring filters.
41. Which SQL command creates a new table?
View Answer
Answer: A) CREATE TABLE.
The CREATE TABLE statement creates a new table along with its columns and constraints.
42. Which SQL command changes the structure of an existing table?
View Answer
Answer: A) ALTER.
ALTER TABLE is used to add, modify, or remove columns and constraints from an existing table.
43. Which SQL clause sorts query results?
View Answer
Answer: B) ORDER BY.
ORDER BY arranges records in ascending or descending order.
44. Which SQL clause filters rows based on a condition?
View Answer
Answer: A) WHERE.
The WHERE clause retrieves only the records that satisfy a specified condition.
45. Which command permanently saves a transaction?
View Answer
Answer: B) COMMIT.
COMMIT permanently saves all changes made during the current transaction.
46. Which command cancels changes made during a transaction?
View Answer
Answer: A) ROLLBACK.
ROLLBACK restores the database to its previous consistent state before the transaction.
47. Which feature protects a database from unauthorized access?
View Answer
Answer: A) Authentication.
Authentication verifies user identity before allowing access to database resources.
48. Why are database backups important?
View Answer
Answer: A) Recover lost data.
Regular backups help restore important information after hardware failures, accidental deletion, or cyberattacks.
49. Which type of database stores data in tables related through keys?
View Answer
Answer: A) Relational Database.
Relational databases organize information into related tables connected through primary and foreign keys.
50. What is the primary purpose of a Database Management System (DBMS)?
View Answer
Answer: A) Manage and organize data efficiently.
A DBMS provides secure, organized, and efficient methods for storing, retrieving, updating, and managing data.
🏆 Excellent – Exam Ready
👍 Very Good
💪 Keep Practising
📚 Revise the Basics
💬 How many questions did you answer correctly?
Share your score in the comments and challenge your friends to beat it.
- Database MCQs Set 2
- Database MCQs Set 3
- Database MCQs Set 4
- Database MCQs Set 5
- SQL MCQs — Coming Soon
- Normalization MCQs — Coming Soon
Frequently Asked Questions
What is a DBMS?▾
A Database Management System (DBMS) is software used to create, store, organize, retrieve, and manage data efficiently.
Are these DBMS MCQs suitable for interviews?▾
Yes. These questions cover the most common DBMS fundamentals asked in university exams, competitive tests, and technical interviews.
Do these questions include SQL basics?▾
Yes. This set includes introductory SQL concepts such as SELECT, INSERT, UPDATE, DELETE, transactions, and table creation.
How many DBMS MCQ sets are available?▾
This is Set 1. Continue with Sets 2–5 to practice additional database concepts and improve your exam preparation.