LIBRARY TRAINEE INTERVIEW QUESTION

The following questions was asking in NIT ,Trichy Central Library Library Trainee post;
Introduce Your self?
What is OPAC?
Mention two name of E book Publisher?
What is Information literacy?
Tell me two library automation software’s?
Tell me two Digital libraries Software’s? 
Features of DDC 22nd and 23rd editions?
What is Web portal?
What is Subject gateway?
Five laws Library science?