Walmart Data Scientist interview questions

Had my first round with a Director level person and it felt more like a screening. He touched upon all the machine learning concepts like Linear Regression, Ridge, Lasso, Gradient Descent, PCA, k-means clustering etc, but all at a very superficial level

The interview when fast and I didn't receive any news from Walmart since the interview. The interviewer was not very nice and didn't pay attention when I answered the question.