First, I had a phone screening, then a phone interview. He asked me two questions on data structure. They were questions with arrays.
Then I was asked to come in for a on-site Interview with 4 people.
First person asked me about algorithm questions : BFS Search for a tree
Second person asked me about data structure questions : Sorting Array
Third person asked me about OOP designing question which was very vague.
Last person asked about data structure questions : Implement LRU Cache