Core Interview Question for E&TC

I have completed my engineering in electronics and telecommunication branch. Now I am searching for the job which is based on this electronics and telecommunication branch so, can anybody help me that whatever questions are asking in the interview and also please specify this concept that how should I prepare for this interview? I am trying to open the specific link but it cannot open what should I do? Can this interview is only based on the specific subject or it may be vary on the multiple topics please tell me?