PNG60403 TOPIC 2.4

What is the first step in the database design process?

• Physical Design

• Requirements Analysis

• Logical Design

• Conceptual Design

Answer explanation

The first step in the database design process is Requirements Analysis, where the needs and objectives of the database are identified before moving on to other design phases.

Which phase involves creating a high-level conceptual model of the database?

• Conceptual Design

• Logical Design

• Physical Design

• Implementation

Answer explanation

The phase that involves creating a high-level conceptual model of the database is Conceptual Design.

What is the purpose of the logical design phase?

• Define storage structures

• Translate conceptual model into logical model

• Create initial data

• Optimize query performance

Answer explanation

The purpose of the logical design phase is to translate the conceptual model into a logical model, ensuring a structured representation of the data.

What is the final phase in the database design process?

• Testing and Optimization

• Implementation

• Logical Design

• Physical Design

Answer explanation

The final phase in the database design process is Testing and Optimization, where the database is thoroughly tested and fine-tuned for optimal performance.

Which phase involves decisions about storage structures and indexing?

• Requirements Analysis

• Physical Design

• Logical Design

• Conceptual Design

Answer explanation

Physical Design phase involves decisions about storage structures and indexing in database design.

What is the purpose of the implementation phase?

• Creating the database schema

• Gathering requirements

• Optimizing query performance

• Testing the database

Answer explanation

The purpose of the implementation phase is to create the database schema, which defines the structure and organization of the database.

What is the main goal of the testing and optimization phase?

• Ensure database meets requirements

• Load initial data

• Create the database schema

• Apply normalization techniques

Answer explanation

The main goal of the testing and optimization phase is to ensure the database meets requirements, ensuring it functions correctly and efficiently.

Which phase involves translating the conceptual model into a logical model?

• Physical Design

• Requirements Analysis

• Logical Design

• Implementation

Answer explanation

The phase that involves translating the conceptual model into a logical model is Logical Design.

What is the purpose of the physical design phase?

• Optimize for target DBMS

• Load initial data

• Create the database schema

• Gather requirements

Answer explanation

The purpose of the physical design phase is to optimize for the target DBMS, ensuring that the database is tailored to the specific requirements and capabilities of the chosen database management system.

Which phase involves writing SQL scripts to create tables and indexes?

• Testing and Optimization

• Conceptual Design

• Logical Design

• Implementation

Answer explanation

The phase that involves writing SQL scripts to create tables and indexes is the Implementation phase.