Question

select all that apply. which of the following steps is normally performed by a for loop?
update the control variable during each iteration
test the control variable by comparing it to a maximum or minimum value
terminate when the control variable reaches its maximum or minimum value
initialize the control variable to a starting value

Explanation:

1. Update the control variable during each iteration: In a for loop, the control variable (e.g., i in for i in range(1, 10)) is updated automatically (incremented or decremented based on the loop definition) during each iteration. So this step is performed.
2. Test the control variable by comparing it to a maximum or minimum value: For loops typically use a pre - defined range (like a start, end, and step value in many programming languages). The loop tests if the control variable has reached the end value (a kind of maximum or minimum in the defined range) to determine if the loop should continue. For example, in for (int i = 0; i < 5; i++), the loop tests if i (control variable) is less than 5 (a maximum value for this loop's range). So this step is performed.
3. Terminate when the control variable reaches its maximum or minimum value: When the control variable reaches the end of its defined range (the maximum or minimum value in the loop's context), the for loop terminates. For example, in the loop for i in 1..5, when i reaches 5 (the maximum in this range), the loop stops. So this step is performed.
4. Initialize the control variable to a starting value: In a for loop, the control variable is initialized to a starting value (e.g., i = 0 in for (int i = 0; i < 10; i++)). This is a key part of setting up the for loop. So this step is performed.

Answer:

• update the control variable during each iteration
• test the control variable by comparing it to a maximum or minimum value
• terminate when the control variable reaches its maximum or minimum value
• initialize the control variable to a starting value