Hello, World.
I've had today(27.07.2021) phone screen for junior SDE position, where I was asked threotical questions withou no coding part.
The following technical questions was given to me:

• difference between Queue and Stack;
• difference between DFS and BFS;
• what is Binary Search Tree;
• Time complexity of Quick sort;
• what time complexity would be to sort a list;
• describe how the hashmap works;
• time complexity of adding , removing operation for array;

There were couple of questions as well ,but I've forgotten it alreay:)

Behavarial part consiste of 1 questions

• Tell me a time whee you faced the chalenging task?;

P.S. I put here a link to my OA part for your information (https://leetcode.com/discuss/interview-question/1343535/amazon-oa-2021-july)