Coforge Senior Software Engineer Testing Interview Questions and Answers

Implement a stack using a queue data structure.

• Create two queues, q1 and q2.

• Push operation: Enqueue the element to q1.

• Pop operation: Dequeue all elements from q1 to q2 except the last one. Dequeue the last element from q1 and return it. Swap q1 and q2.

• Top operation: Dequeue all elements from q1 to q2 except the last one. Dequeue the last element from q1 and return it. Enqueue the element to q2. Swap q1 and q2.

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Finding address of an element in an array given the address of 0th index.

• Calculate the offset of the desired element from the 0th index address and add it to the 0th index address.

• Address of ith element = address of 0th element + i * size of each element.

• Example: Address of 3rd element in an array of strings = address of 0th element + 3 * size of string.

Precompilation unit is a compiled code that can be reused by multiple source files.

• Precompilation unit is created by the compiler from the source code.

• It contains the compiled code of header files and other dependencies.

• It can be reused by multiple source files, reducing compilation time.

• It is also known as precompiled header or PCH.

• Example: stdafx.h in Visual Studio is a precompiled header file.

The first 50 prime numbers are...

• Start with 2, the first prime number

• Check each odd number greater than 2

• Use trial division to check if a number is prime

• Stop when you have found 50 prime numbers

Sorting a file within a range

• Use a sorting algorithm like quicksort or mergesort

• Read the file and store the data in an array or list

• Sort the array or list within the given range

• Write the sorted data back to the file

I am a passionate software engineer with experience in developing web applications using various technologies.

• Experienced in developing web applications using HTML, CSS, JavaScript, and frameworks like React and Angular

• Proficient in backend development with Node.js, Express, and MongoDB

• Familiar with version control systems like Git and project management tools like Jira