Answer the following statements true (T) or false (F)

Question

1) A loop control variable is a variable whose value controls the data type of the repetition condition.
2) A counting loop is a data input loop that exits on entry of a predetermined value.
3) A sentinel loop is a repetition structure that executes a predetermined number of times and is controlled by a counter.
4)Assuming the following declarations,
```
int data;
ifstream infile ("program.txt", ios::in);
```
as long as the extraction operation
```
infile >> data;
```
finds values in program.txt that are the expected data type for data, the value of
```
infile.fail()
```
will be false.
5) The body of a do-while loop is always executed at least one time.

Answer 1

1) F
2) F
3) F
4) T
5) T