examples of analog signals? different types of analog modulation techniques? like amplitude, frequency, phase modulation and what are their methods of modulation and demodulation? why we need frequency spectrum? what is DNS and DHCP? difference between ipv4 and ipv6? classes of ip address? if 32 bit ip address is given and last 8 bits represents hosts. how many ip addresses we can have? how can you measure or calculate the height of antenna which sends and receives any type of modulated signals? write its mathematical formulae? what are methods to transmit any type of signal? what are microwave waveguides? what was you project explain in brief? was it working? what you learned in you internship? (i did internship at BSNL, so i knew whole GSM architecture at tips and explained it in very good manner.) some aptitude questions and situations to test your mental abilities
