Question 1

A loop that continues to execute endlessly is called a(n)  ____ loop.

Accepted Answer

A)   end
B)   unhinged
C)   infinite
D)   definiteE) None of the above
F) A) and B)

Question 2

The control variable in a flag-controlled while loop is a bool variable.

Accepted Answer

A) True 
 B)False

Question 3

What is the output of the following C++ code?

Accepted Answer

A)   24 0
B)   24 1
C)   25 0
D)   25 1E) None of the above
F) B) and C)

Question 4

A loop ____________________ is a set of statements that remains true each time the loop body is executed.

Accepted Answer

invariant

Question 5

Consider the following code. This code is an example of a(n)  ____ while loop.

Accepted Answer

A)   flag-controlled
B)   counter-controlled
C)   EOF-controlled
D)   sentinel-controlledE) All of the above
F) A) and B)

Question 6

To generate a random number, you can use the function rand of the header file ____________________.

Accepted Answer

The answer of To generate a random number, you can...

Question 7

Which executes first in a do...while loop?

Accepted Answer

A)   the statement
B)   loop condition
C)   the expression
D)   update statementE) None of the above
F) A) and C) A

Question 8

The number of iterations of a counter-controlled loop is known in advance.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following loops does not have an entry condition?

Accepted Answer

A)   EOF-controlled while loop
B)   sentinel-controlled while loop
C)   do...while loop
D)   for loopE) B) and C)
F) A) and D)

Question 10

In a while and for loop, the loop condition is evaluated before executing the body of the loop.Therefore, while and for loops are called ____________________ loops.

Accepted Answer

The answer of In a while and for loop, the...

Question 11

In ____ structures, the computer repeats particular statements a certain number of times depending on some condition(s) .

Accepted Answer

A)   looping
B)   branching
C)   selection
D)   sequenceE) B) and C)
F) None of the above

Question 12

Assume that all variables are properly declared.The following for loop executes 20 times.
for (i = 0; i <= 20; i++)
cout << i;

Accepted Answer

A) True 
 B)False

Question 13

Consider the following code.(Assume that all variables are properly declared.)  This code is an example of a(n)  ____ while loop.

Accepted Answer

A)   sentinel-controlled
B)   flag-controlled
C)   EOF-controlled
D)   counter-controlledE) A) and D)
F) All of the above

Question 14

The following while loop terminates when j > 20.
j = 0;
while (j < 20)
j++;

Accepted Answer

A) True 
 B)False

Question 15

In a counter-controlled while loop, the loop control variable must be initialized before the loop.

Accepted Answer

A) True 
 B)False

Question 16

The control statements in the for loop include the initial statement, loop condition, and update statement.

Accepted Answer

A) True 
 B)False

Question 17

What is the output of the following C++ code?

Accepted Answer

A)   0
B)   6
C)   8
D)   10E) A) and B)
F) A) and C)

Question 18

What executes immediately after a continue statement in a while and do-while loop?

Accepted Answer

A)   loop-continue test
B)   update statement
C)   loop condition
D)   the body of the loopE) A) and D)
F) A) and B)

Question 19

What is the next Fibonacci number in the following sequence? 1, 1, 2, 3, 5, 8, 13, 21, ...

Accepted Answer

A)   34
B)   43
C)   56
D)   273E) C) and D)
F) A) and C)

Question 20

What is the output of the following C++ code?

Accepted Answer

A)   10
B)   10 10
C)   10 11
D)   11 11E) A) and D)
F) B) and C) C

Exam 5: Control Structures Ii Repetition

A loop that continues to execute endlessly is called a(n) ____ loop.

Correct AnswerverifiedShow Answer

The control variable in a flag-controlled while loop is a bool variable.

Correct AnswerverifiedShow Answer

What is the output of the following C++ code?

Correct AnswerverifiedShow Answer

A loop ____________________ is a set of statements that remains true each time the loop body is executed.

Correct Answerverifiedinvariant

Consider the following code. This code is an example of a(n) ____ while loop.

Correct AnswerverifiedShow Answer

To generate a random number, you can use the function rand of the header file ____________________.

Correct AnswerverifiedShow Answer

Which executes first in a do...while loop?

Correct AnswerverifiedA

The number of iterations of a counter-controlled loop is known in advance.

Correct AnswerverifiedShow Answer

Which of the following loops does not have an entry condition?

Correct AnswerverifiedShow Answer

In a while and for loop, the loop condition is evaluated before executing the body of the loop.Therefore, while and for loops are called ____________________ loops.

Correct AnswerverifiedShow Answer

In ____ structures, the computer repeats particular statements a certain number of times depending on some condition(s) .

Correct AnswerverifiedShow Answer

Assume that all variables are properly declared.The following for loop executes 20 times. for (i = 0; i <= 20; i++) cout << i;

Correct AnswerverifiedShow Answer

Consider the following code.(Assume that all variables are properly declared.) This code is an example of a(n) ____ while loop.

Correct AnswerverifiedShow Answer

The following while loop terminates when j > 20. j = 0; while (j < 20) j++;

Correct AnswerverifiedShow Answer

In a counter-controlled while loop, the loop control variable must be initialized before the loop.

Correct AnswerverifiedShow Answer

The control statements in the for loop include the initial statement, loop condition, and update statement.

Correct AnswerverifiedShow Answer

What is the output of the following C++ code?

Correct AnswerverifiedShow Answer

What executes immediately after a continue statement in a while and do-while loop?

Correct AnswerverifiedShow Answer

What is the next Fibonacci number in the following sequence? 1, 1, 2, 3, 5, 8, 13, 21, ...

Correct AnswerverifiedShow Answer

What is the output of the following C++ code?

Correct AnswerverifiedC

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C