200-901 Question #269: Real Exam Question with Answer & Explanation

Question

Several teams at a company are developing a new CRM solution to track customer interactions with a goal of improving customer satisfaction and driving higher revenue. The proposed solution contains these components: - MySQL database that stores data about customers - HTML5 and JavaScript UI that runs on Apache - REST API written in Python What are two advantages of applying the MVC design pattern to the development of the solution? (Choose two.)

Options

• Ato enable multiple views of the same data to be presented to different groups of users
• Bto provide separation between the view and the model by ensuring that all logic is separated out
• Cto ensure data consistency, which requires that changes to the view are also made to the model
• Dto ensure that only one instance of the data model can be created
• Eto provide only a single view of the data to ensure consistency

Explanation

{"question_number": 4, "question": "Several teams at a company are developing a new CRM solution... What are two advantages of applying the MVC design pattern to the development of the solution?", "correct_answer": "A, B", "explanation": "The Model-View-Controller (MVC) pattern separates an application into three components: Model (data/business logic), View (UI presentation), and Controller (intermediary). A is correct: MVC allows multiple Views to render the same Model data differently - e.g., a sales team dashboard vs. a support team dashboard can both display the same customer data in different formats. B is correct: MVC enforces separation of concerns so the View (HTML/JS) does not contain business logic, which lives in the Model (Python REST API) - this improves maintainability. C is wrong because MVC specifically decouples the view from the model so changes to one do not force changes to the other. D is wrong - MVC does not restrict model instantiation (that's a Singleton pattern). E is wrong because MVC explicitly supports multiple views.", "generated_by": "claude-sonnet", "llm_judge_score": 3}

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