First they ask me to introduce myself and also ask about my family. They mostly ask about resume and also some network common questions.hey asked me questions about communication/networking protocols (like What is IP, How does it work, Diff between Public IP and Private IP, How does a router work). They asked about the difference between various generations of mobile communication(ex: advantage of 4g over 3g/2g). They asked me the difference between CDMA vs GSM, advantages, and disadvantages for the same.