Answer: D) recovery testing Explanation: In software engineering, performance testing is in general, a testing practice performed to determine how a system performs in terms of responsiveness and stability under a particular workload.

Answer: C) Error guessing Explanation: Static Testing, a software testing technique in which the software is tested without executing the code. This Techniques provide a powerful way to improve the quality and productivity of software development by assisting engineers to recognize and fix their own defects early in the software development process.   It has two parts as listed below: Review - Typically used to find and eliminate errors or ambiguities in documents such as requirements, design, test cases, etc. Static analysis - The code written by developers are analysed (usually by tools) for structural defects that may lead to defects.   In this software is tested without executing the code by doing Review, Walk Through, Inspection or Analysis etc.   Hence, Error guessing is not a static software testing technique.

Answer: B) How much regression testing should be done. Explanation: Impact Analysis is used in software testing to define all the risks associated with any kind of changes in a product being tested. Impact Analysis is nothing but analyzing the impact of changes in the deployed product or application. It gives the information about the areas of the system that may be affected due to the change in the particular section or features of the application.   Why Impact Analysis is done : 1. It is done to understand the possible outcome of implementing the change. Inducing too much functionality into a product can reduce the overall performance of the product. 2. To identify all the files, documents and models that might have to be modified if team decides to implement the change in product 3. To estimate the effort needed behind implementing the change 4. To identify the task required to implement the change 5. It will list the dependencies on a specific element   The impact is analyzed on Requirements, Design & Architecture, impact on Test and impact on schedule.

The main triangle shown is in the given figure and this the total no. of triangle is 15. remaing triangle we can find out in the drawing the triangle in the image.

Answer: B) an object-oriented scripting language Explanation: