What principle does the Waterfall model operate on?

• Development stages occur sequentially

• Can return to the previous stage if modifications are needed

• Stages can overlap

• Customer feedback is required at each stage

Which stage in the Waterfall model is responsible for software testing?

• Requirements analysis

• Design

• Coding

• Testing

What is the main disadvantage of the Waterfall model?

• Difficult to control project progress

• Not suitable for projects with constantly changing requirements

• Lack of clear documentation

• Cannot be applied to large projects

In the Waterfall model, what can happen if an error occurs during the deployment stage?

• Can easily go back and fix it

• High cost of fixing errors

• Errors cannot be fixed

• Just need to update the documentation

Which of the following characteristics is true for the Waterfall model?

• Very flexible with changing requirements

• Requires completion of each stage before moving to the next

• Stages can be executed in parallel

• No need for detailed documentation

The Spiral model combines the advantages of which models?

• Waterfall model

• Agile model

• V-Model

• Incremental model

What is an important component of the Spiral model?

• Risk management

• Repeating multiple development cycles

• No need for documentation

• Suitable for all types of projects

Each spiral in the Spiral model typically includes which stages?

• Planning

• Risk analysis

• Development and testing

• Product deployment

• A, B, C, D

The Spiral model is most suitable for which type of project?

• Small projects with simple requirements

• Projects with high reliability and security requirements

• Projects that do not require risk assessment

• Projects with very short development time

What is the main difference between the Spiral model and the Waterfall model?

• The Spiral model emphasizes risk assessment

• The Spiral model develops software in iterative cycles

• The Waterfall model is more flexible than the Spiral model

• The Spiral model does not have a testing stage