It was nice interview although I didn't use Glassdoor for preparation for this interview. Interview was mainly consists of technical questions and some basic interview questions. HR also ask some questions about technology trends.

Asked about Data structures concepts like lists, Arrays, Stac, Que, trees, graphs, hash tables, loops concepts like if, if else, else if ladder, switch, while, function, recursion and asked me to write the code to find the sum of the digits of an array.