Ericsson Software Developer Co-Op interview questions

Got a screening mail from HR. Responded with all details but never heard back for the next round 4 months. The HR said hiring manager didn't respond. Then I saw another posting and reached out to the same HR and she recommended me to a 3rd position. I wasn't confident about the role but still went ahead. The interview was for 30mins with the Manager and 2 technical team members. Basic questions about networking and my problem solving technique. Got the offer letter next day.

I applied online, got called by HR and was asked to come in for an interview. Interview was online via Skype (they probably use Teams instead now). Only one interview with the team + a short phone screening by HR. Got an offer the next day. Whole process took about a week maybe less, most of which was between the time I applied and the interview. Questions were mostly typical interview questions about your personality, what are your weaknesses, how would others describe you etc. Technical part of the interview was very basic since it's a co-op job. They had a list of questions on a board and asked me to pick two and answer them. If you're wondering about the level of complexity of the questions, for a Java position it was stuff like, what's the difference between an array, a map, and a hash map, and when would you use one over the other.