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In the programming round, I encountered a question that required me to join three SQL tables and use a GROUP BY clause. This was followed by a programming question that involved data structures like matrices and arrays. Finally, there was a question that tested my knowledge of front-end web technologies, specifically HTML, CSS, and JavaScript.
avatar

Gen C

Interviewed at Cognizant

3.6★
Oct 13, 2025

In the programming round, I encountered a question that required me to join three SQL tables and use a GROUP BY clause. This was followed by a programming question that involved data structures like matrices and arrays. Finally, there was a question that tested my knowledge of front-end web technologies, specifically HTML, CSS, and JavaScript.

basically it was technical interview, it's a 20 minutes, i was asked to give a self intro, explain oops concepts in detail(with example), asked me rate on java out 5 , i answered 4, then interview asked write a Fibonacci series using recursion, queations on collection framework (what is it, examples, difference between arraylist and arrays, what is hashmap explain about it and difference between stack and queue) , what is comparator and comparable, asked me explain and to go through file handling process and some SQL questions like what is different type keys, difference drop, truncate and delete .
avatar

Gen C

Interviewed at Cognizant

3.6★
Nov 25, 2025

basically it was technical interview, it's a 20 minutes, i was asked to give a self intro, explain oops concepts in detail(with example), asked me rate on java out 5 , i answered 4, then interview asked write a Fibonacci series using recursion, queations on collection framework (what is it, examples, difference between arraylist and arrays, what is hashmap explain about it and difference between stack and queue) , what is comparator and comparable, asked me explain and to go through file handling process and some SQL questions like what is different type keys, difference drop, truncate and delete .

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