Dun & Bradstreet Software Developer interview questions

Somewhat disappointing experience. Interviewer seemed disinterested and did not engage much. Spent most of his time replying to emails and IMs on his laptop. Overly technical interviewer asked about specific data structures and sorting algorithms, but would not provide any additional information or context on the use-case which it would be applied to, or what problem it was attempting to solve.

Technical interview conducted two times. After technical interview one HR rounde conducted. All the questions related to collections and java 8 features. HR round will be a general topic. Had a nice interview.