IBM Technical Consultant interview questions

Went through 3 back-to-back 30-minute interviews on Hirevue; 2 behaviorial and 1 case study. One of the behavioral interviewers did not seem prepared as she started asking lots of questions about "big data" even though I had no background in data science and it clearly said on my resume that my major was computer science. They are looking for people who communicate well, so my advice would be to be honest if you do not know the answer. Don't fake it until you make it! If you don't know the answer, just admit it and and try to gracefully come up with an alternative way to answer the question. Heard back 3 days after my interview via email. The entire process took 2 weeks.