Question

The database model most likely to be used in the development of a modern (not legacy) system is ___?

1) Hierarchical model
2) Network model
3) Relational model
4) Object-oriented model

Answer 1

The most likely database model to be used in the development of a modern system is the relational model.

Step-by-step explanation:

The database model most likely to be used in the development of a modern system is the relational model. This model organizes data into tables, with each table having rows and columns. The relationship between tables is established through key constraints.

The relational model is widely used due to its simplicity, versatility, and ability to handle complex data structures. It allows for efficient querying, data integrity, and data consistency.

For example, in a student management system, you can have a 'Students' table with columns like 'Name', 'Age', and 'Grade', and a 'Courses' table with columns like 'Course Name' and 'Instructor'. The relationship between the two tables can be established using a common key, such as a student ID.