Question 1

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

Accepted Answer

A) True 
 B)False  False

Question 2

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

Accepted Answer

invariant

Question 3

What is the initial statement in the following for loop? (Assume that all variables are properly declared.) int i;
for (i = 1; i < 20; i++)
$\quad$cout << "Hello World";
cout << "!" << endl;

Accepted Answer

A)  i = 1; 
B)  i < 20; 
C)  i++; 
D)  cout << "Hello World"; 
A)  i = 1; 
B)  i < 20; 
C)  i++; 
D)  cout << "Hello World"; A

Question 4

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 5

What is the output of the following C++ code? num = 10;
while (num > 10)
$\quad$num = num - 2;
cout << num << endl;

Accepted Answer

A)  0 
B)  6 
C)  8 
D)  10 
A)  0 
B)  6 
C)  8 
D)  10

Question 6

If a(n) ____________________ statement is placed in a do...while structure, the loop-continue test is evaluated immediately after this statement.

Accepted Answer

The answer of If a(n) ____________________ statement is placed in...

Question 7

The ____________________ statement is typically used for two purposes:
• To exit early from a loop.
• To skip the remainder of a switch structure.

Accepted Answer

The answer of The ____________________ statement is typically used for...

Question 8

The ____________________ loop has an exit condition but no entry condition.

Accepted Answer

do...while

Question 9

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 10

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)  273 
A)  34 
B)  43 
C)  56 
D)  273

Question 11

What is the value of x after the following statements execute? int x = 5;
Int y = 30;
Do
X = x * 2;
While (x < y);

Accepted Answer

A)  5 
B)  10 
C)  20 
D)  40 
A)  5 
B)  10 
C)  20 
D)  40

Question 12

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

Accepted Answer

A)  end 
B)  unhinged 
C)  infinite 
D)  definite 
A)  end 
B)  unhinged 
C)  infinite 
D)  definite

Question 13

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

Question 14

Consider the following code. int limit; int reps = 0; cin >> limit; While (reps > entry; $\quad$triple = entry * 3; $\quad$cout << triple; $\quad$reps++; } cout << endl; This code is an example of a(n) ____ while loop.

Accepted Answer

A)  flag-controlled 
B)  counter-controlled 
C)  EOF-controlled 
D)  sentinel-controlled 
A)  flag-controlled 
B)  counter-controlled 
C)  EOF-controlled 
D)  sentinel-controlled

Question 15

Suppose sum, num, and j are int variables, and the input is 4 7 12 9 -1. What is the output of the following code? cin >> sum; cin >> num; for (j = 1; j > num; $\quad$sum = sum + num; } cout << sum << endl;

Accepted Answer

A)  24 
B)  25 
C)  41 
D)  42 
A)  24 
B)  25 
C)  41 
D)  42

Question 16

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

Accepted Answer

A) True 
 B)False

Question 17

Which of the following loops is guaranteed to execute at least once?

Accepted Answer

A)  counter-controlled while loop 
B)  for loop 
C)  do...while loop 
D)  sentinel-controlled while loop 
A)  counter-controlled while loop 
B)  for loop 
C)  do...while loop 
D)  sentinel-controlled while loop

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

Question 19

Suppose sum and num are int variables, and the input is 18 25 61 6 -1. What is the output of the following code? sum = 0; cin >> num; while (num != -1) { $\quad$sum = sum + num; $\quad$cin >> num; } cout << sum << endl;

Accepted Answer

A)  92 
B)  109 
C)  110 
D)  119 
A)  92 
B)  109 
C)  110 
D)  119

Question 20

A software ____________________ is a piece of code written on top of an existing piece of code intended to fix a bug in the original code.

Accepted Answer

The answer of A software ____________________ is a piece of...

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

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

What is the initial statement in the following for loop? (Assume that all variables are properly declared.) int i; for (i = 1; i < 20; i++) $\quad$ cout << "Hello World"; cout << "!" << endl;

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.

What is the output of the following C++ code? num = 10; while (num > 10) $\quad$ num = num - 2; cout << num << endl;

If a(n) ____________________ statement is placed in a do...while structure, the loop-continue test is evaluated immediately after this statement.

The ____________________ statement is typically used for two purposes: • To exit early from a loop. • To skip the remainder of a switch structure.

The ____________________ loop has an exit condition but no entry condition.

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

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

What is the value of x after the following statements execute? int x = 5; Int y = 30; Do X = x * 2; While (x < y);

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

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

Consider the following code. int limit; int reps = 0; cin >> limit; While (reps < limit) { $\quad$ cin >> entry; $\quad$ triple = entry * 3; $\quad$ cout << triple; $\quad$ reps++; } cout << endl; This code is an example of a(n) ____ while loop.

Suppose sum, num, and j are int variables, and the input is 4 7 12 9 -1. What is the output of the following code? cin >> sum; cin >> num; for (j = 1; j <= 3; j++) { $\quad$ cin >> num; $\quad$ sum = sum + num; } cout << sum << endl;

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

Which of the following loops is guaranteed to execute at least once?

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

Suppose sum and num are int variables, and the input is 18 25 61 6 -1. What is the output of the following code? sum = 0; cin >> num; while (num != -1) { $\quad$ sum = sum + num; $\quad$ cin >> num; } cout << sum << endl;

A software ____________________ is a piece of code written on top of an existing piece of code intended to fix a bug in the original code.

An Overview of Computers and Programming Languages

Basic Elements of C

Inputoutput

Control Structures I Selection

User-Defined Functions

User-Defined Simple Data Types, Namespaces, and the String Type

Arrays and Strings

Records Structs

Classes and Data Abstraction

Inheritance and Composition

Pointers, Classes, Virtual Functions, and Abstract Classes

Overloading and Templates

Exception Handling

Recursion

Searching, Sorting and the Vector Type

Linked Lists

Stacks and Queues

Filters

Exam 5: Control Structures II Repetition

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

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

What is the initial statement in the following for loop? (Assume that all variables are properly declared.) int i; for (i = 1; i < 20; i++) \quad cout << "Hello World"; cout << "!" << endl;

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.

What is the output of the following C++ code? num = 10; while (num > 10) \quad num = num - 2; cout << num << endl;

If a(n) ____________________ statement is placed in a do...while structure, the loop-continue test is evaluated immediately after this statement.

The ____________________ statement is typically used for two purposes: • To exit early from a loop. • To skip the remainder of a switch structure.

The ____________________ loop has an exit condition but no entry condition.

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

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

What is the value of x after the following statements execute? int x = 5; Int y = 30; Do X = x * 2; While (x < y);

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

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

Consider the following code. int limit; int reps = 0; cin >> limit; While (reps < limit) { \quad cin >> entry; \quad triple = entry * 3; \quad cout << triple; \quad reps++; } cout << endl; This code is an example of a(n) ____ while loop.

Suppose sum, num, and j are int variables, and the input is 4 7 12 9 -1. What is the output of the following code? cin >> sum; cin >> num; for (j = 1; j <= 3; j++) { \quad cin >> num; \quad sum = sum + num; } cout << sum << endl;

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

Which of the following loops is guaranteed to execute at least once?

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

Suppose sum and num are int variables, and the input is 18 25 61 6 -1. What is the output of the following code? sum = 0; cin >> num; while (num != -1) { \quad sum = sum + num; \quad cin >> num; } cout << sum << endl;

A software ____________________ is a piece of code written on top of an existing piece of code intended to fix a bug in the original code.

An Overview of Computers and Programming Languages

Basic Elements of C

Inputoutput

Control Structures I Selection

User-Defined Functions

User-Defined Simple Data Types, Namespaces, and the String Type

Arrays and Strings

Records Structs

Classes and Data Abstraction

Inheritance and Composition

Pointers, Classes, Virtual Functions, and Abstract Classes

Overloading and Templates

Exception Handling

Recursion

Searching, Sorting and the Vector Type

Linked Lists

Stacks and Queues

Filters

What is the initial statement in the following for loop? (Assume that all variables are properly declared.) int i; for (i = 1; i < 20; i++) $\quad$ cout << "Hello World"; cout << "!" << endl;

What is the output of the following C++ code? num = 10; while (num > 10) $\quad$ num = num - 2; cout << num << endl;

Consider the following code. int limit; int reps = 0; cin >> limit; While (reps < limit) { $\quad$ cin >> entry; $\quad$ triple = entry * 3; $\quad$ cout << triple; $\quad$ reps++; } cout << endl; This code is an example of a(n) ____ while loop.

Suppose sum, num, and j are int variables, and the input is 4 7 12 9 -1. What is the output of the following code? cin >> sum; cin >> num; for (j = 1; j <= 3; j++) { $\quad$ cin >> num; $\quad$ sum = sum + num; } cout << sum << endl;

Suppose sum and num are int variables, and the input is 18 25 61 6 -1. What is the output of the following code? sum = 0; cin >> num; while (num != -1) { $\quad$ sum = sum + num; $\quad$ cin >> num; } cout << sum << endl;