Ericsson interview questions

Ask about few basic Java question, mainly from collection classes. Total 4 round of interview has been taken place inducing one round of managerial and hr. In 2nd round they mainly asked about hybrid mobile applications basic. What is cordova? why choose cordova over native? what is rest api?

Highly slow interview process took almost 2 hours to check 15 questions even though I finished the test early. After that face to face if written cleared, completely out of context questions were asked like how you create spring container for maintaining beans, how you will design a server to send output to a printer, asked one DS question, I gave him 3 alternative to solve the same in O(nlogn) complexity but it was looking like he don't know what is time complexity. HR people were coming out and saying "You can leave for the day our HR will get back to you". What a poor hiring process and a complete waste of time nothing more than that. Will never appear for this company ever in my life in future. Please give strong technical trainings to your interviewers so that candidate who are making efforts to come down for your interview at jungle area of gwal pahari in gurgaon will not go in drain.