Question

which loop is used for indefinite number of repetition?​

Answer 1

Answer:

A sentinel controlled loop is also called an indefinite repetition loop because the number of iterations is not known before the loop starts executing ...

Answer 2

Answer:

The important thing to take note of here is that somewhere in the while loop's block, there must be some instructions that cause condition 1 to be false. Otherwise, the while loop becomes an infinite loop (a loop that repeats forever).