The aptitude test was held on hackerrank. It consisted of 19 MCQs and 2 coding questions. First coding question was easy, they had given time as a string ("HH:MM") in 24-hour format and seconds as integers. We had to return time after given number of seconds in same format. The second coding question required us to find all substrings of a string containing each vowel atleast once.

The whole progress is smooth and respectful, pretty detailed questions on all aspects but they are mainly interested in security, candidates should focus more on network and encrypt algorithms , some background questions also mentioned too