The 1st telephonic interview was around technical question from applications to storage. TCP vs UDP , NAS vs SAN , RAID 5 vs 0+1 , Firewalls , Hypervisor , Load Balancer , Containers, Dockers,Pupper Shef , CDN , Map reducer , big data , SQL vs NO SQL , Router , Switch , OSI model , development tools , unix shell scripting , tuning rdbms , running application , tuning I/O , SOA , Continuous Integration , Continuous deployment , Monolithic application , loosely coupled application , Cloud security, Encryption , dedup, WAN optimization For 2nd telephonic it was mainly focused on example based like Give me an example where you have done something which no one has done , give me an example where you have failed , give me an example where you went out of your charter/comfort zone to help someone , give me an example where you have handled a difficult customer and how you have handled it , what have u learn new lately and how you have implemented it , Next was face2face onsite for whole day it started with presentation/white boarding then one technical and four example based interviews , in a few example based interviews they might ask you to do a architecture white boarding