PC5 DBMS Quiz 1

Which of the following is NOT a type of data model?

• Hierarchical

• Network

• Blockchain

• Relational

In a relational database, data is organized into:

• Trees

• Tables

• Graphs

• Lists

What is the main advantage of a relational database over hierarchical and network models?

• It is faster

• It supports ad-hoc queries using SQL

• It is cheaper

• It uses less memory

Which of the following is a key feature of a hierarchical database model?

• Tables

• Parent-child relationships

• Many-to-many relationships

• Object classes

Which DBMS architecture follows the client-server model?

• One-tier

• Two-tier

• Mainframe

• All of the above

Which of the following is true about Object-Oriented Databases?

• They store data in flat files

• They are used to represent complex data and its relationships

• They do not support inheritance

• They are rarely used in real-world applications

In the network model, data is represented as:

• A tree

• A graph with nodes and edges

• Tables with foreign keys

• Flat files

Which of these is an example of a relational database management system (RDBMS)?

• Oracle

• MongoDB

• Neo4j

• Hadoop

The DBMS acts as an interface between the __________ and __________.

• Database and operating system

• User and database

• User and operating system

• Network and application

Which of the following is NOT a characteristic of a DBMS?

• Data abstraction

• Data redundancy

• Consistency

• Data integrity