Question 1

Because programmers commonly need to repeat instructions, all programming languages provide repetition structures.

Accepted Answer

Repetition structures, also known as loops, are a crucial part of programming and are available in all programming languages to enable the repeating of instructions.

Question 2

The Loop instruction can use only integers, or whole numbers, as the number of times to repeat.

Accepted Answer

The loop instruction, such as "for" or "while", can use integers or whole numbers as the number of times to repeat. This is because the loop needs a specific number of iterations to know when to stop. Using non-integers, such as decimals or fractions, would make it difficult to determine how many times the loop should repeat.

Question 3

The following loop would execute ___________________ times:
Loop index from 0 up to (but not including) 10 times incrementing by 1

Accepted Answer

10

Question 4

Which of the following is an example of an infinite loop?
A) While 1 > 2
B) While 2 < 1
C) While 1 == 1
D) Loop 1000 times times
E) None of these

Accepted Answer

Option C, "While 1 == 1," is an example of an infinite loop because the condition 1 == 1 will always be true, causing the loop to execute indefinitely without a break condition.

Question 5

The While instruction can be used to test the value of an object's property.

Accepted Answer

The answer of The While instruction can be used to...

Question 6

The following loop would execute how many times? Loop index from 0 up to (but not including) 3 times incrementing by 1
A) 1
B) 2
C) 3
D) 4
E) None of these

Accepted Answer

The loop will run 3 times as it starts at index 0 and stops before reaching index 3, incrementing by 1 each time. So it will run for indices 0, 1, and 2, which is a total of 3 times.

Question 7

Which type of structure is used to execute the same set instructions more than once?
A) Decision structure
B) Sequence structure
C) Repetition structure
D) Do together structure
E) None of these

Accepted Answer

Repetition structure (also known as a loop) is used to execute the same set of instructions multiple times.

Question 8

A(n) ___________________ loop will repeat an unlimited number of times.

Accepted Answer

The answer of A(n) ___________________ loop will repeat an unlimited...

Question 9

The While instruction is a posttest loop.

Accepted Answer

The While instruction is a pretest loop, meaning it evaluates its condition before executing the loop's body.

Question 10

Because the condition is tested before the loop is repeated, what is another term for the While instruction?
A) Counter-controlled loop
B) Infinite loop
C) Posttest loop
D) Pretest loop
E) None of these

Accepted Answer

The While instruction is a pretest loop because the condition is tested before the loop is repeated.

Question 11

The ___________________ instruction causes a set of instructions to execute as long as a specified Boolean expression is true.

Accepted Answer

The answer of The ___________________ instruction causes a set of...

Question 12

This is the type of variable that the Loop instruction uses internally.
A) Register
B) Counter
C) Matrix
D) Address
E) None of these

Accepted Answer

The Loop instruction uses a counter variable internally to keep track of the number of iterations. The counter is incremented or decremented with each iteration of the loop.

Question 13

Which type of instruction will cause a set of instructions to execute as long as a specified Boolean expression is true?
A) If/Else
B) Loop
C) Repeat
D) While
E) None of these

Accepted Answer

The While instruction will cause a set of instructions to execute as long as a specified Boolean expression is true.

Question 14

The While instruction is also called a(n) ___________________ loop because the condition is tested before the loop is repeated.

Accepted Answer

The answer of The While instruction is also called a(n)...

Question 15

The Loop instruction causes a set of instructions to execute as long as a specified Boolean expression is true.

Accepted Answer

The Loop instruction typically repeats a set of instructions until a specified condition is met, but it does not necessarily depend on a Boolean expression being true; it can also iterate a fixed number of times or until a condition becomes false.

Question 16

The following loop would execute how many times? Loop 1 times times
A) 1
B) 2
C) 3
D) 4
E) None of these

Accepted Answer

The loop will execute only once as the instruction "times times" is redundant, and the word "times" does not change the number of iterations.

Question 17

You can use a variable or a function call to specify the number of repetitions that a loop will perform.

Accepted Answer

This is true, a loop can use a variable or function call to determine the number of iterations. For example, a for loop can use a variable as the limit for the number of times it will execute, or a while loop can use a function call that returns a value indicating when to stop looping.

Question 18

The complicated version of the loop instruction shows that the loop uses a counter variable named ___________________.

Accepted Answer

The answer of The complicated version of the loop instruction...

Question 19

The following loop would execute how many times? Loop index from 0 up to (but not including) 4 times incrementing by 2
A) 1
B) 2
C) 3
D) 4
E) None of these

Accepted Answer

The loop starts at 0 and increments by 2 each time. It will run at index 0 and then at index 2, stopping before it reaches 4. This results in a total of 2 executions.

Question 20

The ___________________ instruction causes a set of instructions to execute a certain number of times.

Accepted Answer

The answer of The ___________________ instruction causes a set of...

Quiz 5: Repetition Structures

Because programmers commonly need to repeat instructions, all programming languages provide repetition structures.

The Loop instruction can use only integers, or whole numbers, as the number of times to repeat.

The following loop would execute ___________________ times: Loop index from 0 up to (but not including) 10 times incrementing by 1

Which of the following is an example of an infinite loop?

The While instruction can be used to test the value of an object's property.

The following loop would execute how many times? Loop index from 0 up to (but not including) 3 times incrementing by 1

Which type of structure is used to execute the same set instructions more than once?

A(n) ___________________ loop will repeat an unlimited number of times.

The While instruction is a posttest loop.

Because the condition is tested before the loop is repeated, what is another term for the While instruction?

The ___________________ instruction causes a set of instructions to execute as long as a specified Boolean expression is true.

This is the type of variable that the Loop instruction uses internally.

Which type of instruction will cause a set of instructions to execute as long as a specified Boolean expression is true?

The While instruction is also called a(n) ___________________ loop because the condition is tested before the loop is repeated.

The Loop instruction causes a set of instructions to execute as long as a specified Boolean expression is true.

The following loop would execute how many times? Loop 1 times times

You can use a variable or a function call to specify the number of repetitions that a loop will perform.

The complicated version of the loop instruction shows that the loop uses a counter variable named ___________________.

The following loop would execute how many times? Loop index from 0 up to (but not including) 4 times incrementing by 2

The ___________________ instruction causes a set of instructions to execute a certain number of times.