Genpact QA Lead Interview Questions and Answers

Abstract class is a class that can have both abstract and non-abstract methods, while interface is a contract that defines methods that a class must implement.

• Abstract class can have constructors, fields, and methods, while interface can only have abstract methods.

• A class can implement multiple interfaces but can only inherit from one abstract class.

• Abstract classes are used when some common functionality needs to be s...read more

Find the 2nd largest number in an array of strings.

• Convert the strings to numbers before comparing.

• Sort the array in descending order and return the second element.

• Handle edge cases like empty array or array with only one element.

List is a collection of elements with duplicates allowed, while set is a collection of unique elements. Linked list is a data structure where each element points to the next element.

• List allows duplicates, set does not

• Linked list has elements connected by pointers

• List can be implemented using arrays or linked lists

• Set is implemented using hash tables or trees

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

• Framework provides structure and support for developing software.

• It includes libraries, APIs, and tools to help with common tasks.

• Examples: Selenium for automated testing, Spring for Java development.

Implicit/explicit difference in QA testing refers to the level of detail and clarity in test cases.

• Implicit testing involves assumptions and relies on prior knowledge, while explicit testing is clear and detailed.

• Implicit testing may overlook certain scenarios, while explicit testing covers all possible cases.

• Example: Implicit testing may involve testing a login page without specifying all possible error messages, whil...read more

Magento is an open-source e-commerce platform written in PHP.

• Magento is a popular e-commerce platform used for online stores.

• It is written in PHP and utilizes MySQL for database management.

• Magento offers a range of features such as product management, order processing, and customer accounts.

• There are different versions of Magento available, including Magento Open Source (formerly Community Edition) and Magento Commerce

Occurrence in Java refers to the number of times a specific element appears in a collection or array.

• Use a loop to iterate through the collection or array

• Use a counter variable to keep track of the number of occurrences

• Compare each element with the target element to determine if it matches