Handed over my resume to the employers during the career fair, was quizzed on topics like Binary Arithmetic (Writing binary of decimals), Logic Gates, Networking basic (addresses) and Programming (writing a loop). Invited to the company for an on-site. Quizzed on same topics but questions slightly different . SIMPLE, just stick to basics. Also was asked a few Ladder Logic questions. The technical interview was followed by a behavioral round, and site visit. Overall a nice warm experience. Though I didn't get an offer, I was told I just lost out by the slightest of margins.