Coviam Intern interview questions

I have applied through Internshala and i got one online test link.After successfully cleared the test they call me for technical interview after 1 week. Tech Interview 1:She asked me 3 DS questions,rest all the questions come from Core JAVA. all questions were basics but conceptual.My performance was average,not perfect. i won't expect that they took one more interview of mine on the same day . Tech Interview 2:He asked about my project,I tried but couldn't make him understand. Then he asked questions from Data Structures:1.Boundary Traversal of binary tree with alternate nodes. 2.Implementation of Stack PUSH() and POP() by using enque() and deque() methods only. I didn't give exact answer of these two questions.

I applied through my college, the interview process took one day to complete, the interview was on Skype and there was network problem from my end so interviewer got irritated and finally decided to leave the interview,