I received an email from an employment website. It provided me with an Elevator login page to book a slot.

After I booked my slot, there was no confirmation from the company about my interview. Nevertheless, I appeared for a virtual interview. The interviewer joined 35 minutes late without any acknowledgement. The interview was really horrible, as the interviewer's voice was not clear at all. He had complete network issues, seemingly being outstation with too much background noise. I could not understand any of his questions, and he did not agree to reschedule after I informed him of the glitches. I was rejected.

Multithreading - ExecutorService, String, Comparator vs. Comparable, HashSet, HashMap