The DBMS that uses a table$-$based format for data storage is:

Question $1$ options:

a$)$

Network DBMS

b$)$

Hierarchical DBMS

c$)$

Relational DBMS

d$)$

Object$-$Oriented DBMS

Question $2(1$ point$)$

Which of the following DBMS types uses parent$-$child relationships of the data segments?

Question $2$ options:

a$)$

Hierarchical DBMS

b$)$

Network DBMS

c$)$

Relational DBMS

d$)$

Object$-$Oriented DBMS

Question $3(1$ point$)$

Which type of DBMS is best for handling large amounts of unstructured data?

Question $3$ options:

a$)$

Relational DBMS

b$)$

Hierarchical DBMS

c$)$

NoSQL DBMS

d$)$

Network DBMS

Question $4(1$ point$)$

In a three$-$tier architecture, the application logic $($or process logic$)$ is located in the:

Question $4$ options:

a$)$

Database Server

b$)$

Client

c$)$

Application Server

d$)$

None of the above

Question $5(1$ point$)$

In a two$-$tier architecture, the presentation logic and application logic are combined at the:

Question $5$ options:

a$)$

Client level

b$)$

Server level

c$)$

Both a$)$ and b$)$

d$)$

None of the above

Question $6(1$ point$)$

In the $\_\_\_\_$ architecture of a DBMS$,$ the user does not need to be aware of the physical storage details.

Question $6$ options:

a$)$

$1-$tier

b$)$

$2-$tier

c$)$

$3-$tier

d$)$

All of the above

Question $7(1$ point$)$

Which type of DBMS allows inheritance, encapsulation, and polymorphism in its data model?

Question $7$ options:

a$)$

Hierarchical DBMS

b$)$

Network DBMS

c$)$

Relational DBMS

d$)$

Object$-$Oriented DBMS

Question $8(1$ point$)$

Which DBMS type is designed to manage relationships between entities?

Question $8$ options:

a$)$

Hierarchical DBMS

b$)$

Network DBMS

c$)$

Relational DBMS

d$)$

Object$-$Oriented DBMS

Question $9(1$ point$)$

In the relational model, data are structured into:

Question $9$ options:

a$)$

Tables

b$)$

Trees

c$)$

Graphs

d$)$

Networks

Question $10(1$ point$)$

A tuple in a database refers to:

Question $10$ options:

a$)$

A row

b$)$

A column

c$)$

A table

d$)$

A database

Question $11(1$ point$)$

The degree of a relation is the:

Question $11$ options:

a$)$

Number of rows in the table

b$)$

Number of tables in the database

c$)$

Number of attributes in the table

d$)$

Number of constraints on the table

Question $12(1$ point$)$

A primary key in a database is a:

Question $12$ options:

a$)$

Unique identifier of a record

b$)$

Foreign key from another table

c$)$

Column that allows null values

d$)$

Table that links two other tables

Question $13(1$ point$)$

A foreign key in a database is:

Question $13$ options:

a$)$

A key that is unique in every row

b$)$

A key that uniquely identifies a record in another table

c$)$

A key that can be null

d$)$

Both b$)$ and c$)$

Question $14(1$ point$)$

What is a relational schema?

Question $14$ options:

a$)$

A description of the entire database

b$)$

A description of a particular table in the database

c$)$

A description of the network architecture

d$)$

A description of a physical storage structure

Question $15(1$ point$)$

In a relational database, what does the term 'domain' refer to$?$

Question $15$ options:

a$)$

The overall collection of databases in a system

b$)$

A group of related tables in a database

c$)$

The set of permissible values for a given attribute

d$)$

The restrictions on a foreign key

Question $16(1$ point$)$

What is an attribute in a relational database?

Question $16$ options:

a$)$

A single column in a table

b$)$

A constraint on a table

c$)$

A type of database query

d$)$

A type of database relationship

Question $17(1$ point$)$

Which of the following types of integrity constraints ensures that a value that appears in one relation for a given set of attributes also appears for a certain set of attributes in another relation?

Question $17$ options:

a$)$

Domain constraint

b$)$

Referential integrity constraint

c$)$

Key constraint

d$)$

None of the above

Question $18(1$ point$)$

Which of the following integrity constraints ensure that every tuple in a relation has a unique identity?

Question $18$ options:

a$)$

Domain constraint

b$)$

Entity integrity constraint

c$)$

Key constraint

d$)$

Referential integrity constraint

Question $19(1$ point$)$

Which of the following keys allows for duplicate values?

Question $19$ options:

a$)$

Primary key

b$)$

Super key

c$)$

Candidate key

d$)$

Foreign key

Question $20(1$ point$)$

In the context of relational databases, what does a 'composite key' refer to$?$

Question $20$ options:

a$)$

A key formed by combining at least two or more columns

b$)$

A key that cons