Phone interview included basic technical questions regarding networking and the OSI model, Next was a face to face interview in London which consisted of rounds with staff & management staff with more technical questions as well as checking if you will fit into the culture. Such questions were detailed information regarding packets & frames, STP, DHCP & Wireless, VPNs & ARP as well as some troubleshooting. Most of CCNP T shoot, Routing and Switching. Next was a Skype interview with senior management which included troubleshooting scenarios & checking your interests and personality. The last stage was a interview in San Francisco where there was more culture based questions checking your interests and background and passion as well as a further troubleshooting scenario. All in all a 4 step interview: Phone, Face to Face, Skype, San Francisco