Domanda di colloquio di Amazon

Database : Knowing the SQL Queries Knowing about joins,subqueries,constraints etc. Basic database troubleshooting (Like Can’t login, Can’t connect to the database) Basic RDMS concept (they can refer tutorial point for the same DBMS topic) Networking : · Difference between router, switch. · What is a Broadcast Domain? · DHCP DORA process · DNS – detailed explanation. TCP/UDP and why? · Subnetting · MSS/MTU · Complete flow when you trigger amazon.com · OSI model with complete details and protocols on each layer. · TCP and SSL handshake · Difference between TCP/UDP, examples · Flow/error control · What is a firewall, why do you need it? · OSI Model OS : OS boot process (Win/Linux) - Memory management ;Memory pages; Buffer and Caches, Basic commands ------------------------------ - My net isn't working, how do i troubleshoot? - My net speed is slow, i need you to troubleshoot - Whats ptr entry in DNS. -Explain DNS, DHCP, Memory management to your grand father. -Have you dealt with a bad customer? -Any decisions that you regret? Etc..