Opera Solutions Software Engineer II interview questions

There was a pen and paper screening test. After that, there were 3 rounds of personal interviews with level of difficulty increasing at each level. The whole process was very engaging. The final round of interview made me feel really small. But, later I realized, it was just a trick. One has to be real and calm even when he/she is bombarded with difficult ones.

Normal, not that tough. Very basic questions. Mostly from internet. 2 rounds of interview. One telephonic, second face-to-face. Telephonic: more about my projects so far. Face-to-face: more like puzzle solving and basic concepts related to my technology.