Tech Mahindra R2R Lead Interview Questions and Answers

SCD Type 2 implementation involves tracking historical changes in data by creating new records for each change.

• Identify the columns that need to be tracked for changes

• Add effective start and end dates to track the validity of each record

• Insert new records for changes and update end dates for previous records

• Maintain a surrogate key to uniquely identify each version of the record

I can join the team within 2 weeks.

• I can start within 2 weeks of receiving the offer.

• I need to give notice to my current employer.

• I may need to relocate, which could affect my start date.

Object-oriented programming concepts that focus on data encapsulation, inheritance, polymorphism, and abstraction.

• Encapsulation: Bundling data and methods that operate on the data into a single unit (class).

• Inheritance: Ability of a class to inherit properties and behavior from another class.

• Polymorphism: Ability to present the same interface for different data types.

• Abstraction: Hiding the complex implementation detai...read more

super is used to refer immediate parent class instance variable or method, while this is used to refer current class instance variable or method.

• super is used to access parent class members, while this is used to access current class members

• super keyword is used to invoke parent class constructor, while this keyword is used to invoke current class constructor

• super keyword is used to differentiate between parent and chi...read more

I am an experienced Module Lead with expertise in Automation framework design and end-to-end testing activities.

• I have designed and implemented automation frameworks using tools like Selenium and Appium.

• I have experience in creating reusable components, libraries, and utilities for automation.

• I have conducted end-to-end testing activities including test planning, execution, and reporting.

• I have worked on continuous int...read more