Question 1

Which of the following is true?

Accepted Answer

A)  You can initialize data members of a class only in the class's constructor. 
B)  C++11 allows you to provide a default value for a data member when you declare it in the class declaration. 
C)  You cannot initialize data members of a class. 
D)  None of the above 
A)  You can initialize data members of a class only in the class's constructor. 
B)  C++11 allows you to provide a default value for a data member when you declare it in the class declaration. 
C)  You cannot initialize data members of a class. 
D)  None of the above B

Question 2

Which of the following is correct when labeling cases in a switch structure?

Accepted Answer

A)  case1: 
B)  Case1: 
C)  case 1: 
D)  Case 1: 
A)  case1: 
B)  Case1: 
C)  case 1: 
D)  Case 1: C

Question 3

Switch can be used to test:

Accepted Answer

A)  int constants. 
B)  float constants. 
C)  string constants. 
D)  all types of constants. 
A)  int constants. 
B)  float constants. 
C)  string constants. 
D)  all types of constants. A

Question 4

Which of the following for headers produces the values from 27 through 3, decrementing by 3?

Accepted Answer

A)  for (unsigned int i{27}; i = 3; i -= 3) 
C)  for (unsigned int i{27}; i > 3; i -= 3) 
D)  All of the above. 
A)  for (unsigned int i{27}; i = 3; i -= 3) 
C)  for (unsigned int i{27}; i > 3; i -= 3) 
D)  All of the above.

Question 5

Float and double variables should be used:

Accepted Answer

A)  To perform monetary calculations. 
B)  As counters. 
C)  To store true/false values. 
D)  As approximate representations of decimal numbers. 
A)  To perform monetary calculations. 
B)  As counters. 
C)  To store true/false values. 
D)  As approximate representations of decimal numbers.

Question 6

Which of the following is false?

Accepted Answer

A)  The three expressions in the for structure are optional. 
B)  The initialization and increment expressions can be comma-separated lists. 
C)  You must declare the control variable outside of the for loop. 
D)  A for loop can always be used to replace a while loop, and vice versa. 
A)  The three expressions in the for structure are optional. 
B)  The initialization and increment expressions can be comma-separated lists. 
C)  You must declare the control variable outside of the for loop. 
D)  A for loop can always be used to replace a while loop, and vice versa.

Question 7

An example of a unary operator is:

Accepted Answer

A)  The < relational operator. 
B)  The = assignment operator. 
C)  The % arithmetic operator. 
D)  The ! logical operator. 
A)  The < relational operator. 
B)  The = assignment operator. 
C)  The % arithmetic operator. 
D)  The ! logical operator.

Question 8

Which of the following is false?

Accepted Answer

A)  break and continue statements alter the flow of control. 
B)  continue statements skip the remaining statements in current iteration of the body of the loop in which they are embedded. 
C)  break statements exit from the loop in which they are embedded. 
D)  continue and break statements may be embedded only within iteration statements. 
A)  break and continue statements alter the flow of control. 
B)  continue statements skip the remaining statements in current iteration of the body of the loop in which they are embedded. 
C)  break statements exit from the loop in which they are embedded. 
D)  continue and break statements may be embedded only within iteration statements.

Question 9

The ____________, __________ and ____________ are the only three forms of control necessary.

Accepted Answer

A)  switch, if, else. 
B)  sequence, selection, iteration. 
C)  break, continue, if…else. 
D)  for, while, do…while. 
A)  switch, if, else. 
B)  sequence, selection, iteration. 
C)  break, continue, if…else. 
D)  for, while, do…while.

Question 10

Which of the following is not one the rules for forming structured programs?

Accepted Answer

A)  Begin with the "simplest activity diagram." 
B)  Any transition arrow can be reversed. 
C)  Any action state can be replaced by two action states in sequence. 
D)  Any action state can be replaced by any control statement. 
A)  Begin with the "simplest activity diagram." 
B)  Any transition arrow can be reversed. 
C)  Any action state can be replaced by two action states in sequence. 
D)  Any action state can be replaced by any control statement.

Question 11

Variables are also known as:

Accepted Answer

A)  lvalues, but can be used as rvalues. 
B)  lvalues, and cannot be used as rvalues. 
C)  rvalues, and cannot be used as lvalues. 
D)  Constant variables. 
A)  lvalues, but can be used as rvalues. 
B)  lvalues, and cannot be used as rvalues. 
C)  rvalues, and cannot be used as lvalues. 
D)  Constant variables.

Question 12

In a switch statement:

Accepted Answer

A)  A break is required after each case. 
B)  Multiple actions in a case do not need to be enclosed in braces. 
C)  A default case is required. 
D)  A break is required after the default case. 
A)  A break is required after each case. 
B)  Multiple actions in a case do not need to be enclosed in braces. 
C)  A default case is required. 
D)  A break is required after the default case.

Question 13

Consider the following code, assuming that x is an int with an initial value of 12 if(x = 6) {
Cout << x;
}
What is the output?

Accepted Answer

A)  6 
B)  12 
C)  Nothing. 
D)  A syntax error is produced. 
A)  6 
B)  12 
C)  Nothing. 
D)  A syntax error is produced.

Question 14

Consider the execution of the following for loop for (int x = 1; x < 5; increment) {
Cout << x + 1 << endl;
}
If the last value printed is 5, which of the following might have been used for increment?

Accepted Answer

A)  x++ 
B)  x += 1 
C)  ++x 
D)  Any of the above. 
A)  x++ 
B)  x += 1 
C)  ++x 
D)  Any of the above.

Question 15

In C++, the condition (4 > y > 1):

Accepted Answer

A)  Evaluates correctly and could be replaced by (4 > y && y > 1). 
B)  Does not evaluate correctly and should be replaced by (4 > y && y > 1). 
C)  Evaluates correctly and could not be replaced by (4 > y && y > 1). 
D)  Does not evaluate correctly and should not be replaced by (4 > y && y > 1). 
A)  Evaluates correctly and could be replaced by (4 > y && y > 1). 
B)  Does not evaluate correctly and should be replaced by (4 > y && y > 1). 
C)  Evaluates correctly and could not be replaced by (4 > y && y > 1). 
D)  Does not evaluate correctly and should not be replaced by (4 > y && y > 1).

Question 16

Which of the following is not one of the C++ control structures?

Accepted Answer

A)  if 
B)  switch 
C)  break 
D)  do…while 
A)  if 
B)  switch 
C)  break 
D)  do…while

Question 17

The expression if (num != 65) cannot be replaced by:

Accepted Answer

A) if (num > 65 || num < 65) B) if (!(num == 65)) C) if (num - 65) D) if (!(num - 65)) A) if (num > 65 || num < 65) B) if (!(num == 65)) C) if (num - 65) D) if (!(num - 65))

Question 18

Of the following, which is not a logic error?

Accepted Answer

A)  Not placing curly braces around the body of an if that contains two statements. 
B)  Using == to assign a value to a variable. 
C)  Failing to initialize counter and total variables before the body of a loop. 
D)  Using commas instead of the two required semicolons in a for header. 
A)  Not placing curly braces around the body of an if that contains two statements. 
B)  Using == to assign a value to a variable. 
C)  Failing to initialize counter and total variables before the body of a loop. 
D)  Using commas instead of the two required semicolons in a for header.

Question 19

Which of the following for headers is not valid?

Accepted Answer

A)  for (int i{0}; i < 10; i++) 
B)  int i{0}; for (; i < 10; i++) 
C)  for (int i{0}; int j{5}; ; i++) 
D)  All of the above. 
A)  for (int i{0}; i < 10; i++) 
B)  int i{0}; for (; i < 10; i++) 
C)  for (int i{0}; int j{5}; ; i++) 
D)  All of the above.

Question 20

Which of the following is a poor programming practice?

Accepted Answer

A)  Indenting the statements in the body of each control structure. 
B)  Using floating-point values for counters in counter-controlled iteration. 
C)  Nesting multiple iteration structures. 
D)  Placing vertical spacing above and below control structures. 
A)  Indenting the statements in the body of each control structure. 
B)  Using floating-point values for counters in counter-controlled iteration. 
C)  Nesting multiple iteration structures. 
D)  Placing vertical spacing above and below control structures.

Exam 5: Control Statements, Logical Operators

Which of the following is true?

Which of the following is correct when labeling cases in a switch structure?

Switch can be used to test:

Which of the following for headers produces the values from 27 through 3, decrementing by 3?

Float and double variables should be used:

Which of the following is false?

An example of a unary operator is:

Which of the following is false?

The ____________, __________ and ____________ are the only three forms of control necessary.

Which of the following is not one the rules for forming structured programs?

Variables are also known as:

In a switch statement:

Consider the following code, assuming that x is an int with an initial value of 12 if(x = 6) { Cout << x; } What is the output?

Consider the execution of the following for loop for (int x = 1; x < 5; increment) { Cout << x + 1 << endl; } If the last value printed is 5, which of the following might have been used for increment?

In C++, the condition (4 > y > 1):

Which of the following is not one of the C++ control structures?

The expression if (num != 65) cannot be replaced by:

Of the following, which is not a logic error?

Which of the following for headers is not valid?

Which of the following is a poor programming practice?

Introduction to Computers and C++

Introduction to C Programming; Inputoutput and Operators

Introduction to Classes, Objects and Strings

Control Statements, Assignment, and Operators

Functions and an Introduction to Recursion

Class Templates Array and Vector; Catching Exceptions

Pointers and Pointer-Based Strings

Classes: a Deeper Look; Throwing Exceptions

Operator Overloading; String and Array Objects

Object-Oriented Programming: Inheritance

Object-Oriented Programming: Polymorphism

Stream Inputoutput: a Deeper Look

File Processing

Standard Library Containers and Iterators

Standard Library Algorithms

Exception Handling: a Deeper Look

Introduction to Custom Templates

Custom Templatized Data Structures

Searching and Sorting

Class String and String Stream Processing

Bits, Characters, C Strings and Structs

Other Topics

C++11 Additional Features

Filters

The , and __ are the only three forms of control necessary.