Multiple Choice Questions (MCQs) are a popular way to test knowledge and comprehension in many fields, including database management. Database MCQs are a collection of questions designed to assess a student’s knowledge of database concepts, principles, and theories.
These MCQs are used by educators to evaluate students’ learning and understanding of database topics.
Data Base MCQs
Here are some database MCQs with answers:
1 What is a Database?
a. A collection of information that is organized so that it can be easily accessed, managed, and updated.
b. A program that allows you to create tables, forms, reports, and queries.
c. A set of rules for creating and organizing data.
d. None of the above.
Answer: a.
2 What is SQL?
a. Structured Query Language
b. Sequential Query Language
c. Structured Queue Language
d. None of the above
Answer: a.
3 Which of the following is used to manipulate data in a database?
a. SQL
b. HTML
c. CSS
d. None of the above
Answer: a.
4 What is a Primary Key?
a. A field in a table that uniquely identifies each record in the table.
b. A field in a table that can be duplicated.
c. A field in a table that is used to join two tables.
d. None of the above.
Answer: a.
5 What is normalization?
a. The process of organizing data in a database to reduce redundancy and improve data integrity.
b. The process of adding more data to a database.
c. The process of removing data from a database.
d. None of the above.
Answer: a.
6 What is a join in SQL?
a. A way to combine data from two or more tables.
b. A way to create a new table.
c. A way to delete data from a table.
d. None of the above.
Answer: a.
7 What is a foreign key?
a. A field in one table that refers to the primary key in another table.
b. A field in a table that uniquely identifies each record in the table.
c. A field in a table that can be duplicated.
d. None of the above.
Answer: a.
8 Which of the following is used to retrieve data from a database?
a. SELECT statement
b. INSERT statement
c. UPDATE statement
d. DELETE statement
Answer: a.
9 What is a database schema?
a. The structure or blueprint of a database.
b. A collection of data in a database.
c. A report generated from a database.
d. None of the above.
Answer: a.
10 What is a view in SQL?
a. A virtual table created from a query.
b. A physical table created from a query.
c. A way to add data to a table.
d. None of the above.
Answer: a.
11 Which of the following is used to define the relationship between tables in a database?
a. Foreign key
b. Primary key
c. Index
d. Trigger
Answer: a.
12 What is a data warehouse?
a. A large, centralized repository of data that is used for reporting and analysis.
b. A software tool used for designing databases.
c. A type of database used for storing multimedia data.
d. None of the above.
Answer: a.
13 Which of the following is used to perform complex calculations on data in a database?
a. Aggregate functions
b. Logical operators
c. Comparison operators
d. None of the above
Answer: a.
14 What is a stored procedure?
a. A set of SQL statements that can be stored and executed on demand.
b. A type of query used to retrieve data from a database.
c. A tool used for database administration.
d. None of the above.
Answer: a.
15 What is a database trigger?
a. A special type of stored procedure that is automatically executed in response to certain events.
b. A type of query used to retrieve data from a database.
c. A tool used for database administration.
d. None of the above.
Answer: a.
16 What is a database index?
a. A data structure used to speed up searches on a database table.
b. A special type of table used to store frequently accessed data.
c. A tool used for database administration.
d. None of the above.
Answer: a.
17 What is a data dictionary?
a. A database object that contains metadata about the database.
b. A type of report generated from a database.
c. A tool used for database administration.
d. None of the above.
Answer: a.
18 Which of the following is used to enforce data integrity in a database?
a. Constraints
b. Triggers
c. Stored procedures
d. None of the above
Answer: a.
19 What is a transaction in a database?
a. A set of database operations that must be completed as a unit of work.
b. A type of query used to retrieve data from a database.
c. A tool used for database administration.
d. None of the above.
Answer: a.
20 What is a database backup?
a. A copy of a database that is used to restore the database in the event of a failure.
b. A type of report generated from a database.
c. A tool used for database administration.
d. None of the above.
Answer: a.
