Question

in a ____, the loop body might never execute because the question controlling the loop might be false the first time it is asked.

loop control

pretest loop

summary report

posttest loop

question 27

the first step in a while loop is typically to ____.

initialize the loop control variable

compare the loop control variable to a constant value

execute the body of the loop

increment the loop control variable

Explanation:

1. In a pretest loop (like a while loop in many programming languages), the condition is checked before the loop body executes. If the condition is false initially, the loop body never runs.
2. The first step in a while loop is typically to initialize the loop - control variable. This sets up the starting point for the loop's operation. For example, if you have a loop that counts from 1 to 10, you first initialize a variable (say i = 1). Then you compare (in the while condition), execute the loop body, and increment. But the very first step is initialization.

Answer:

1. B. pretest loop
2. A. initialize the loop control variable