Loops in C++

How many times the following code will be executed:
for(int i=0; i<=10; i++) cout<<i<<endl;

• 1
• 10
• 11
• 9

Which line does contain the error in the following code:
1: int i, j = 5;
2: for(i = 1, i <=5, i++)
3: cout<< i << endl;

• Line 1
• Line 2
• Line 3
• Line 1 and 3

If you want to create counter from 1 to N, what's the best command to use ?

• for
• while
• do while
• switch

Which one is not a loop?

• for

• have

• do

• while

What loops will always execute at least once?

• for

• do

• while