100+ Tech Mahindra Interview Questions and Answers

Find the length of the longest substring without repeating characters.

• Iterate through the string and keep track of the characters seen so far in a set.

• Use two pointers to mark the start and end of the current substring.

• Update the maximum length of the substring as you iterate through the string.

Framework walkthrough involves explaining the structure, components, and functionality of the test automation framework.

• Explain the architecture of the framework (e.g. modular, data-driven, keyword-driven, hybrid)

• Discuss the key components such as test scripts, test data, object repositories, and reporting mechanisms

• Describe how the framework handles test execution, result reporting, and error handling

• Provide examples of how the framework is used in test automation projects

Loops in Informatica are used to iterate over a set of data or perform repetitive tasks.

• Loops in Informatica can be implemented using the 'Expression' or 'Router' transformations.

• They are useful for processing multiple rows of data in a mapping.

• Common types of loops include 'While' and 'For' loops.

• Loops can help in performing complex data transformations and validations.

Developed a software system to automate inventory management for a manufacturing company.

• Designed user-friendly interface for easy data input and retrieval

• Implemented barcode scanning technology for efficient tracking of inventory

• Integrated system with existing ERP software for seamless data synchronization

Hooks in React JS are functions that let you use state and other React features without writing a class.

• Hooks were introduced in React 16.8 to allow functional components to have state and lifecycle methods.

• useState() is a hook that allows you to add state to functional components.

• useEffect() is a hook that allows you to perform side effects in functional components.

• Custom hooks are reusable functions that can contain logic and stateful logic for components.

• Hooks provide a mo...read more