1. Describe the V-model of software testing and explain how it helps ensure that software meets quality standards. Explain with the help of a scenario and block diagram. [10] 2. What role do test cases play in the software testing process? Give examples to support your arguments. Describe how positive and negative test cases differ as well. How do they help with thorough testing, and when would you choose one over the other? [20] 3. Describe the idea of test case execution and how it fits into the process of software testing. What procedures are followed when running test cases, and how do you deal with errors that are discovered? Describe the significance of test case reporting and documentation in further detail. How can well-documented test cases and reports help testing teams and stakeholders collaborate? [20]