Delegate and lambda expression and files in c#

Faq.txt

Q1 can a static method associated with a class having same parameter and retunn typecall delegate?
ans : yes , it can be call just the return typr and parameter must be satisfied.

Q2 What is a lambda operator?
ans: this "=>" is known as the lambda operator in c#.

Q3. How can we know that we have reach the end of a file while reading file?
ans: we just need to check if the file.ReadLine == null, if null then it had reached the end.

Q4 What is anonymous function?
ans It is a function with not name , just body.

Mcq.txt

Q1 what is correct way of declaring a delegate name print with one argument?

a. public delegate print();
b. public void print delegate(arg);
c. public delegate void print(arg);
d none of the above

ans: c)

Q2 what is correct to this statement 
    Func<int,int,int> name;

a. take 3 parameter
b. take 1 paramter as input , one as output and the last is for default
c. the first two is input parameter and the last is output parameter
d.none of the above

ans: d)

Q3) What is correct method to call a lambda expression

a. func_name();
b. func_name.call();
c. func_name.invoke();
d. Both a and c

ans c

Q4) what will be the output:
 
    List<int> lt=newList<int>{1,2,3,4,5,6};
    List<int> en =lt.Where(n=>n%2==0).ToList();
    foreach(int i in en)
      {
          Console.Write(i);
      }

a) 123456
b) 135
c)  2 4 6
d)246

ans: d