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Which software model you will use when the project is large, requirements are unclear and complex and risk and cost evaluation is important?

17. Which software model you will use when the project is large, requirements are unclear and complex and risk and cost evaluation is important?

1. Waterfall model
2. Spiral Model
3. Prototype Model
4. Incremental Model

Answer: B) Spiral Model

Explanation:

You should use Spiral Model when the project is large, requirements are unclear and complex and risk and cost evaluation is important.