The interviewer was not interested in conducting the interview. She asked me to wait for 5-6 minutes.

I then started discussing my background and technologies. She interrupted me repeatedly, as if I were lying.

She asked if I had worked on Kafka. As soon as I said no, she completely lost her cool.

She then asked me to write code to fetch login details from the KafkaUtils class in a multithreaded environment. I attempted to write some pseudocode, and she constantly pointed out mistakes in an unconstructive way.

Next, she asked me to write code for a data structures problem. It was a medium-difficulty problem. I made a minor mistake in the code, and she immediately said, "Okay, we are done."

Right after the call, I realized it was a simple variable mistake, but she either didn't understand or didn't bother to offer advice.

She also asked multiple questions about Microservices and monolithic applications. I answered them well, but it seemed she only wanted to hear the specific answers she already knew.

1. Find friend number pairs within the range of 0-10000. Friend numbers are defined such that if 'a' and 'b' are friend numbers, then d(a) = b and d(b) = a, where d(n) is the sum of all divisors of 'n' excluding 'n' itself.

2. Share an object between two threads. When one thread has obtained the object from KafkaUtils, the next thread should retrieve it from the first thread, avoiding a subsequent call to KafkaUtils.

3. Microservices versus monolithic applications.