Persistent Systems Senior Automation Engineer Interview Questions and Answers

Dynamic x path is a way to locate elements on a web page using changing attributes or properties.

• Dynamic x path is used when the attributes of an element on a web page keep changing.

• It involves using functions like contains(), starts-with(), or ends-with() to create flexible x paths.

• Dynamic x path is helpful when the traditional x path is not stable due to changing attributes.

• Example: //input[contains(@id,'dynamicID')]...read more

A hash map is a data structure that stores key-value pairs and allows for efficient retrieval of values based on keys.

• Use a hash function to map keys to indices in an array

• Handle collisions by using techniques like chaining or open addressing

• Common operations include inserting, retrieving, and deleting key-value pairs

Sets are unordered collections of unique elements, while lists are ordered collections of elements that allow duplicates.

• Sets do not allow duplicate elements, while lists can have duplicate elements.

• Sets are unordered, meaning the elements are not stored in any particular order, while lists maintain the order of elements.

• Sets are implemented using hash tables for faster lookup, while lists are typically implemented usi...read more

I am using a modular framework with Page Object Model design pattern for test automation.

• Modular framework divides the entire application into small independent modules for easy maintenance and scalability

• Page Object Model design pattern separates the web elements and their actions into separate classes for better code organization and reusability

• Using TestNG for test execution and reporting

• Integration with Jenkins for

To find the 2nd highest number from an array, sort the array in descending order and return the element at index 1.

• Sort the array in descending order using a sorting algorithm like bubble sort or quicksort.

• Return the element at index 1, which will be the 2nd highest number.