Technical Interview - Describe the most complex technical challenge you have solved and how did you solve it. - What happens when a URL is entered in the browser? This question is testing your understanding of the DNS process which is what I described in my answer. I was asked this question in both my telephone interview and loop. - Difference between L4 Load balancer and L7 load balancer - How would you troubleshoot performance issues in 3-tier architecture - Tell me about a time when you implemented a security solution - how/what did you implement - One question on RAID and RAID levels - I didn't know the answer so moved on quickly from this - A question on different response codes - 400/500 errors. - Different OSI/TCP-IP layers - Difference between HTTP and HTTPS - Virtualisation - what is it? Behaviour Interview All questions were around Amazon LPs. - Tell me about a time when you received negative feedback - Tell me about a time you went above and beyond for a customer - Tell me about a calculated risk you've taken where speed was critical. How did you handle the situation and risk? What was the outcome?