Operative Media Senior QA Engineer Interview Questions and Answers

OOPs Concepts focus on encapsulation, inheritance, polymorphism, and abstraction. Functions are reusable blocks of code.

• OOPs Concepts include encapsulation, inheritance, polymorphism, and abstraction.

• Encapsulation involves bundling data and methods that operate on the data into a single unit.

• Inheritance allows a class to inherit properties and behavior from another class.

• Polymorphism enables objects to be treated as in...read more

A HashMap in Java uses a hash table for storing key-value pairs, allowing for efficient data retrieval.

• 1. HashMap stores data in key-value pairs, where each key is unique.

• 2. It uses an array of buckets to store entries, where each bucket can hold multiple entries in case of collisions.

• 3. The hash function computes an index based on the key's hash code, determining where to store the entry.

• 4. When a collision occurs, Ha...read more

final is a keyword used to declare constants, finalize is a method used for cleanup operations, and finally is a block used for exception handling.

• final is a keyword in Java used to declare constants that cannot be changed, like final int x = 10;

• finalize is a method in Java used for cleanup operations before an object is garbage collected, like protected void finalize() {...}

• finally is a block in Java used for exceptio...read more

POST is used to create a new resource, while PUT is used to update an existing resource.

• POST is non-idempotent, meaning multiple identical requests will create multiple resources.

• PUT is idempotent, meaning multiple identical requests will have the same effect as a single request.

• POST is often used for creating new records in a database.

• PUT is often used for updating existing records in a database.

System.exit() is a method in Java that terminates the currently running Java Virtual Machine.

• System.exit() terminates the JVM and shuts down the program immediately.

• It takes an integer argument as an exit status code.

• Calling System.exit(0) indicates successful termination.

• System.exit(1) or any non-zero value indicates abnormal termination.

Algorithm to find element in array with equal sum on both sides

• Iterate through array and calculate sum of elements on left and right side of each element

• Compare sums on both sides for each element to find the desired element

• Return the element if found, otherwise return -1

A framework in Java is a reusable set of libraries, tools, and guidelines for developing software applications.

• Frameworks provide structure and guidelines for organizing code and implementing common functionalities.

• Java code in a framework typically includes classes, interfaces, methods, and annotations.

• Real-time scenarios in QA testing may involve automated testing, data validation, and performance testing.

• Example: Us...read more

Reverse a string and find digits in the string.

• Use a loop to iterate through the characters of the string and build the reversed string.

• Use a regular expression to find digits in the string.

• Return the reversed string and the digits found in the string.

I have contributed to the development of automation frameworks by designing reusable components and implementing best practices.

• Designed and implemented custom test automation frameworks using tools like Selenium and Appium

• Created reusable functions and libraries to improve code reusability and maintainability

• Integrated automation scripts with continuous integration tools like Jenkins for automated testing

• Contributed t...read more