JNTUK B.Tech CSE 2-2(R23) Software Engineering UNIT-I 2-Marks Question & Answers

 JNTUK B.Tech CSE 2-2(R23) Software Engineering UNIT-I 2 Marks Question and Answers. The most expected and important questions for semester or internal exams are now available. Here you can get all jntu materials, previous year papers, important questions, syllabus, e-books, lab manuals ext.

Below are 10 two-mark questions along with concise answers covering the unit topics:

1. What is the exploratory style of software development?
   Answer: It is an ad hoc, iterative approach that emphasizes rapid prototyping and experimentation with minimal upfront planning, allowing developers to discover requirements and solutions dynamically.

2. How did software engineering emerge as a discipline?
   Answer: Software engineering arose in response to the growing complexity of software projects, driving the adoption of structured methodologies, systematic processes, and best practices to improve quality, maintainability, and reliability.

3. What are some notable changes in software development practices over time?
   Answer: The evolution includes a shift from unstructured, ad hoc coding to formalized methods, increased emphasis on iterative development, rigorous testing, user involvement, and the adoption of agile practices.

4. What is Computer System Engineering?
   Answer: It is an interdisciplinary field that integrates hardware and software design, focusing on optimizing overall system functionality, performance, and reliability by ensuring seamless interaction between computing components.

5. Define a Software Life Cycle Model.
   Answer: A Software Life Cycle Model is a structured framework that outlines all phases of software development—from requirements and design to implementation, testing, deployment, and maintenance—guiding the overall development process.

6. What are the main phases of the Waterfall model?
   Answer: The Waterfall model is sequential, typically involving Requirements, Design, Implementation, Testing, Deployment, and Maintenance, where each phase must be completed before the next begins.

7. What extensions have been developed for the Waterfall model?
   Answer: Extensions include iterative or incremental modifications that allow partial revisiting of phases, thereby adding flexibility while retaining the model’s structured, sequential framework.

8. What is Rapid Application Development (RAD)?
   Answer: RAD is an iterative model that focuses on quickly building prototypes and incorporating user feedback, significantly reducing development time compared to traditional, linear approaches.

9. What are the core principles of the Agile development model?
   Answer: Agile emphasizes iterative progress, collaboration, continuous customer feedback, and adaptive planning, enabling teams to quickly respond to changing requirements and deliver incremental improvements.

10. Describe the Spiral model in software development.
    Answer: The Spiral model combines iterative development with systematic risk assessment, where repeated cycles (or spirals) allow for continual refinement and validation of the software, enhancing robustness and mitigating risks.