IBS Software Services Software Testing Engineer Interview Questions and Answers

Testing ensures software quality and reduces the risk of defects in production.

• Testing helps identify defects and bugs early in the development cycle.

• It ensures that the software meets the requirements and specifications.

• Testing helps improve the overall quality of the software.

• It reduces the risk of defects and failures in production.

• Testing helps build trust and confidence in the software among stakeholders.

Retesting is testing the same functionality again after fixing the defects. Regression testing is testing the unchanged functionality after making changes in the software.

• Retesting is done to ensure that the defects reported earlier have been fixed.

• Regression testing is done to ensure that the changes made in the software have not affected the existing functionality.

• Retesting is a subset of regression testing.

• Retesting...read more

SDLC stands for Software Development Life Cycle, which is a process used to design, develop, and test software.

• SDLC is a framework that outlines the steps involved in software development.

• It includes planning, designing, coding, testing, and maintenance.

• Each phase of SDLC has its own set of deliverables and objectives.

• SDLC models include Waterfall, Agile, and DevOps.

• The choice of SDLC model depends on the project requi

STLC stands for Software Testing Life Cycle, which is a process followed to ensure quality in software testing.

• STLC is a sequential process that includes planning, designing, executing, and reporting.

• It involves various stages like requirement analysis, test planning, test design, test execution, and test closure.

• The main objective of STLC is to ensure that the software meets the customer's requirements and is of high ...read more

DEFECT LIFE CYCLE is the process of identifying, reporting, prioritizing, and resolving software defects.

• Defect is identified by testers during testing

• Defect is reported to development team

• Development team prioritizes and resolves the defect

• Defect is retested by testers

• If defect is fixed, it is closed, else it goes back to development team

• Defect life cycle ends when all defects are resolved

Unit testing is a type of software testing where individual units or components of a software application are tested in isolation.

• Unit testing is done by developers during the development phase

• It helps to identify defects early in the development cycle

• It ensures that each unit/component of the software application is working as expected

• It helps to improve the quality of the software application

• Examples of unit testing

Scenarios are high-level descriptions of user actions and system responses, while test cases are specific steps to verify functionality.

• Scenarios describe user interactions with the system, while test cases verify specific functionality.

• Scenarios are often used in the early stages of testing to identify potential issues, while test cases are used for more detailed testing.

• Scenarios can be used to create test cases, but...read more

Explanation of UART, SPI, CAN, I2C timing diagrams and frame formats.

• UART: asynchronous serial communication, start and stop bits, baud rate

• SPI: synchronous serial communication, master-slave architecture, clock polarity and phase

• CAN: differential serial communication, arbitration, error detection and correction

• I2C: synchronous serial communication, master-slave architecture, addressing, clock stretching

Filter in MVC is used to retrieve a subset of data from a larger dataset based on certain criteria.

• Filters can be applied to data in the model or in the view.

• Filters can be used to sort, group, or limit the data returned.

• Filters can be implemented using LINQ or other query languages.

• Examples of filters include date range filters, category filters, and search filters.