Given an input string, write a method to print only those characters that are not repeated more than twice. Concurrent HashMap and Synchronized hash map with implementations Given 5 micro services. For e.g.: Walmart Retail has Order service. Order service is depending on five other like Price, Inventory, Catalog etc. Now if Price service goes down, what to do? How would you change routing? If East coast web server of goes down, how would you route traffic to West coast server? How exception is thrown in controller springboot? Where is Kafka in CAP? It is CA How does consumer tell kafka that a message in received? Solid design principles with example:
