These guys basically provide screening service for tech-recruitments. While conducting the screening interview, they ask question at 1.5x speed of normal human talk, that too on poor microphone. If you ask clarifying question, the interviewer will jump to the next question lol. Also the interview which I got has listed all technologies available in market in his Linkedin profile under Skills section :D. I feel sorry for those companies that do the mistake of hiring this company to conduct screening rounds.