Nokia

First, a written examination with technical and aptitude questions. Then, two rounds of technical interviews; the second round also included an HR representative.

The interview process was done in three rounds. Two technical and one HR round. First and second rounds went on for about 45 minutes each, and the HR round lasted for 20 minutes.

Quite technical interview it was. Questions were asked from 2G, 3G optimization processes and parameters. I prepared for tough questions on the parametric side. Questions about RRC connected state, power control, paging, etc., were asked.