Pregunta de entrevista de ABB

All are programming/ Logic or psudocodes. The Qs like: 1) Take input as Int input= (12,22,232,1212). ANd get the output as sum of each intigers values as the : 3,4,7,6 2) In an stack there were 0,1,2,3 were present. write a logic to insert another data to the stack and remove 1 from the stack. 3) What were design patterns? elaborate all with examples. 4) Describe all your project through a block diagram 5) LINQ 6) Write a logic in SQL to display the O/p as Grandparent, Parent, child structure. 7) Filters in MVC, WebAPI version and why to use it 8) What are the Exceptions and hows the order to log it in c# 9) Write code how to log in an event viewer. 10)Whats the exact error you will face when you will initialize the class as Employee emp= Employee(); (New is missing here)