Question 1

____ loops should be used only when their instructions must be processed at least once.&#10;A) Posttest&#10;C) DoAfter&#10;B) Pretest&#10;D) ProcessAfter

Accepted Answer

Posttest loops, such as the "do-while" loop in many programming languages, ensure that the loop's body is executed at least once before the condition is tested. This is because the condition check occurs after the body of the loop has been executed.

Question 2

In the posttest syntax, the condition is evaluated before the loop instructions are processed.

Accepted Answer

In the posttest loop syntax (e.g., do-while loop), the condition is evaluated after the loop instructions are processed, not before.

Question 3

In the pretest syntax, the condition is evaluated after the loop instructions are processed.

Accepted Answer

In the pretest loop syntax, the condition is evaluated before the loop instructions are processed, determining whether the loop will execute.

Question 4

The ____ loop condition is evaluated after the instructions within the loop are processed.&#10;A) posttest&#10;C) before&#10;B) pretest&#10;D) after

Accepted Answer

A posttest loop, such as a do-while loop in many programming languages, evaluates its condition after executing the loop's body, ensuring that the loop's instructions are processed at least once before any condition check.

Question 5

In the ____ loop, the condition appears in the last line.&#10;A) sequential&#10;C) posttest&#10;B) pretest&#10;D) iterative

Accepted Answer

In a posttest loop, also known as a do-while loop, the condition is evaluated after the body of the loop has executed, which means it appears at the end of the loop structure. This ensures that the loop body is executed at least once.

Question 6

The instructions in a pretest loop will be processed at least once.

Accepted Answer

In a pretest loop (also known as an entry-controlled loop), the condition is tested before the body of the loop is executed, so if the condition is false from the beginning, the instructions inside the loop will not be executed at all.

Question 7

The instructions in a posttest loop ____.&#10;A) may never be processed&#10;C) always will be processed at least twice&#10;B) should only be processed once&#10;D) always will be processed at least once

Accepted Answer

In a posttest loop, the instructions within the loop are executed at least once before the condition is tested. This ensures that the loop's body is processed at least once, regardless of whether the loop's condition is true or false at the first test.

Question 8

In the pretest syntax for a Do&#8230;Loop statement, the {While | Until} condition section is part of the ____ clause.&#10;A) Execute&#10;C) Do&#10;B) Process&#10;D) Loop

Accepted Answer

The {While | Until} condition in a pretest Do…Loop statement is part of the "Do" clause, specifying the condition at the beginning of the loop.

Question 9

Pretest loops should be used only when their instructions must be processed at least once.

Accepted Answer

Pretest loops (like the "while" loop) check the condition before executing the loop body, meaning they may not execute at all if the condition is false initially. Loops that execute at least once regardless of the initial condition are post-test loops (like the "do-while" loop).

Question 10

A pretest loop is easier to write and understand than a posttest loop with a selection structure.

Accepted Answer

A pretest loop checks the condition before executing the loop body, while a posttest loop executes the loop body before checking the condition. This makes a pretest loop easier to write and understand because the programmer can see the condition before writing the loop body.

Question 11

In the ____ loop, the condition appears in the first line.&#10;A) sequential&#10;C) posttest&#10;B) pretest&#10;D) iterative

Accepted Answer

The answer of In the ____ loop, the condition appears...

Question 12

Most programmers use posttest loops.

Accepted Answer

The answer of Most programmers use posttest loops....

Question 13

A repetition structure can be either a pretest loop or a posttest loop.

Accepted Answer

The answer of A repetition structure can be either a...

Question 14

The ____ loop condition is evaluated before the instructions within the loop are processed.&#10;A) posttest&#10;C) before&#10;B) pretest&#10;D) after

Accepted Answer

The answer of The ____ loop condition is evaluated before...

Question 15

In the posttest syntax for a Do&#8230;Loop, the {While | Until} condition section is part of the ____ clause.&#10;A) Execute&#10;C) Do&#10;B) Process&#10;D) Loop

Accepted Answer

The answer of In the posttest syntax for a Do&#8230;Loop,...

Question 16

The Do&#8230;Loop statement can be used to code a pretest loop as well as a posttest loop.

Accepted Answer

The answer of The Do&#8230;Loop statement can be used to...

Question 17

When a posttest loop is placed in a selection structure, the loop will be processed only when the selection structure's condition evaluates to True.

Accepted Answer

The answer of When a posttest loop is placed in...

Question 18

The diamond that represents the condition appears at the top of the loop in the flowchart of a posttest loop.

Accepted Answer

The answer of The diamond that represents the condition appears...

Question 19

The difference between pretest and posttest loops pertains to how the accumulator is evaluated.

Accepted Answer

The answer of The difference between pretest and posttest loops...

Question 20

In the posttest syntax, the only purpose of the Do clause is to mark the beginning of the loop.

Accepted Answer

The answer of In the posttest syntax, the only purpose...

Question 21

You may test an initial condition of a posttest loop by ____.&#10;A) using a nested loop for the initial condition&#10;B) placing the posttest loop inside a selection structure&#10;C) resetting the counter variable on each pass of the loop&#10;D) initializing all loop variables to zero

Accepted Answer

The answer of You may test an initial condition of...

Question 22

One problem with posttest loops is that they always execute at least once. You can fix the problem in the Posttest Loop button's code by placing the posttest loop in a(n) ____ structure.&#10;A) selection&#10;C) iterative&#10;B) execute&#10;D) another posttest loop

Accepted Answer

The answer of One problem with posttest loops is that...

Question 23

You are given the following statement: Do ... Loop Until intCounter > intNumTimes.
The Until intCounter > intNumTimes represents a _____.

A) loop condition
C) loop full condition
B) loop exit condition
D) loop retreat condition

Accepted Answer

The answer of You are given the following statement: Do...

Deck 13: Do It, Then Ask Permission Posttest Loops