Yelp Web Developer interview questions

Applied through Indeed.com, received an email from recruiter a few days after, passed 1st round phone screen which went pretty much same as previous posts. 2nd step is a javascript code test (cannot disclose details as asked by Yelp) which is supposed to finish in 5-6 hours, I turned it in the next day and it got passed. 3rd step is skype interview which I assume is the usually talked about "2nd round" by previous posts, I prepared a lot on data structure and algorithm, but none of those questions were asked, the question instead was to create code to report javascript exceptions to remote server. Although I have many years of javascript experience and created successful front end applications, I was not able to answer specificly questions such as what JS error message will be for a certain wrong javascript code, the next day I received an "NO" email.

I applied through their careers site and was contacted by a recruiter initially. The recruiter had a laundry list of questions for pre-liminary screen. 1. On which port HTTP runs? 2. Time Complexity for searching an item in HashMap 3. Time Complexity for searching an item in BST 4. SSL full form 5. Maximum value of 32 bits unsigned int? 6. Complexity of adding an element to the head of a linked list? 7. Protocol underneath HTTP 8. Time Complexity for searching an item in Sorted Array. I answered all of them, so after that I was setup for a Skype Interview with one of the developer. Second Round: During the skype interview, I was asked a bunch of questions related to technology and then there was a problem solving to code. 1. What happens when you type yelp.com on your browser 2. Lets say your yelp.com homepage is loading slowly how would you start addressing the problem? 3. inner join vs left outer join I pretty answered all of them, then was a problem solving question.