NielsenIQ Automation Test Engineer Interview Questions, Process, and Tips

Program to toggle string

• Create an empty string variable

• Loop through each character in the input string

• If the character is uppercase, convert it to lowercase and add to the new string

• If the character is lowercase, convert it to uppercase and add to the new string

• Return the new string

Program to check if string is number

• Use built-in functions like isdigit() or isnumeric()

• Handle negative numbers and decimal points separately

• Consider edge cases like leading/trailing spaces and exponential notation

Swap two strings without using third

• Use XOR operator

• Use addition and subtraction

• Use multiplication and division

To create an alphanumeric string of a given length, we can use a combination of random letters and numbers.

• Determine the length of the string required

• Create a list of all possible alphanumeric characters

• Randomly select characters from the list and append them to the string until the desired length is reached

A framework is a set of guidelines, standards, and tools used to develop and maintain software applications.

• A framework provides a structure for organizing code and building applications

• It includes pre-written code libraries, modules, and functions that can be reused

• Frameworks can be specific to a programming language or technology

• Examples include Selenium for web testing, Robot Framework for automation testing, and Dj