6. In the Spiral model the radius of the spiral at any point represents

A. the level of risk 

B. the progress made in the current phase 

C. the cost incurred in the project till then 

D. None of these 

7. _________ uses powerful development software and small, highly trained teams of programmers

A. Prototyping 

B. RAD 

C. Coding 

D. Modeling 

8. Which of the following is true about E-R Diagrams?

A. They consist of object-relationship pairs 

B. It indicates cardinality of relationships 

C. It indicates modality of relationships 

D. all of the above 

9. Planning the modular program structure & control relationships between modules is called

A. Architechtural Design 

B. High Level Design 

C. System Design 

D. all of the above 

10. Designers should aim to produce strongly _____ and weakly _____ designs

A. coupled, functional 

B. maintainable, cohesive 

C. cohesive, coupled 

D. coupled, cohesive 

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