Design and Implementation MCQs

✅ The correct answer is option D.
Explanation: The debugging system is a part of testing phase

✅ The correct answer is option B.
Explanation: Use a scenario-based analysis where various scenarios of system use are identified and analyzed in turn.

✅ The correct answer is option D.
Explanation: Sequence implements processing steps that are essential in the specification of any algorithm. Condition provides the facility for selected processing based on some logical occurrence, and repetition allows for looping.

✅ The correct answer is option B.
Explanation: These are the verbs of a model, representing behavior over time and space.

✅ The correct answer is option D.
Explanation: The nine UML diagrams include use-case, sequence, collaboration, activity, state-chart, deployment, class, object and component.

✅ The correct answer is option A.
Explanation: The modality is 1 if an occurrence of the relationship is mandatory, else 0 for optional relationship

✅ The correct answer is option B.
Explanation: In singleton pattern, the class itself is made responsible for keeping track of its instance.Thus it ensures that no more than one instance is created.

✅ The correct answer is option B.

✅ The correct answer is option C.
Explanation: Using inheritance, an existing design pattern becomes a template for a new subclass.Composition is a concept that leads to aggregate objects.

✅ The correct answer is option C.