Question 1

In an activity diagram for an algorithm, what does a solid circle surrounded by a hollow circle represent?

Accepted Answer

A)  Initial state. 
B)  Final state. 
C)  Action state. 
D)  Transition. 
A)  Initial state. 
B)  Final state. 
C)  Action state. 
D)  Transition. B

Question 2

The conditional operator (?:):

Accepted Answer

A)  Is the only ternary operator in C++. 
B)  Is a unary operator. 
C)  Associates from left to right. 
D)  Accepts two operands. 
A)  Is the only ternary operator in C++. 
B)  Is a unary operator. 
C)  Associates from left to right. 
D)  Accepts two operands. A

Question 3

Having a loop within a loop is known as:

Accepted Answer

A)  Recursion. 
B)  Doubling up. 
C)  Nesting. 
D)  Stacking. 
A)  Recursion. 
B)  Doubling up. 
C)  Nesting. 
D)  Stacking. C

Question 4

What is the final value of x after performing the following operations? int x{21};
Double y{6};
Double z{14};
Y = x / z;
X = 5.5 * y;

Accepted Answer

A)  8.25. 
B)  5.5. 
C)  5. 
D)  8. 
A)  8.25. 
B)  5.5. 
C)  5. 
D)  8.

Question 5

Which of the following statements about nested if…else statements is true?

Accepted Answer

A)  An if…else statement may not be nested in another nested if…else. 
B)  Each if…else statement must contain only a simple condition. 
C)  In an if body, an inner if…else executes only if the outer if statement's condition is true. 
D)  The statement(s) in an inner if always execute(s) if its condition is true. 
A)  An if…else statement may not be nested in another nested if…else. 
B)  Each if…else statement must contain only a simple condition. 
C)  In an if body, an inner if…else executes only if the outer if statement's condition is true. 
D)  The statement(s) in an inner if always execute(s) if its condition is true.

Question 6

What is wrong with the following while loop? while (sum <= 1000) {
Sum = sum - 30;
}

Accepted Answer

A)  The parentheses should be braces. 
B)  There should be a semicolon after while (sum <= 1000). 
C)  sum = sum - 30 should be sum = sum + 30 or else the loop may never end. 
D)  None of the above. 
A)  The parentheses should be braces. 
B)  There should be a semicolon after while (sum <= 1000). 
C)  sum = sum - 30 should be sum = sum + 30 or else the loop may never end. 
D)  None of the above.

Question 7

Which of the following is a double-selection statement?

Accepted Answer

A)  if. 
B)  if…else. 
C)  do…while. 
D)  switch. 
A)  if. 
B)  if…else. 
C)  do…while. 
D)  switch.

Question 8

Assuming that x and y are equal to 3 and 2, respectively, after the statement x -= y executes, the values of x and y will be:

Accepted Answer

A)  x: 5; y: 3 
B)  x: 3; y: -1 
C)  x: 3; y: 5 
D)  x: 1; y: 2 
A)  x: 5; y: 3 
B)  x: 3; y: -1 
C)  x: 3; y: 5 
D)  x: 1; y: 2

Question 9

Which of the following operations has the highest precedence?

Accepted Answer

A)  Postincrement. 
B)  Multiplication. 
C)  Addition. 
D)  Assignment. 
A)  Postincrement. 
B)  Multiplication. 
C)  Addition. 
D)  Assignment.

Question 10

Which of the following statements is false?

Accepted Answer

A)  C++ requires all variables to have a type. 
B)  C++ fundamental types are portable. 
C)  ints may be 64 bits on some machines. 
D)  C++ programmers frequently have to write different versions of programs for different platforms. 
A)  C++ requires all variables to have a type. 
B)  C++ fundamental types are portable. 
C)  ints may be 64 bits on some machines. 
D)  C++ programmers frequently have to write different versions of programs for different platforms.

Question 11

Pseudocode normally does not include:

Accepted Answer

A)  Declarations. 
B)  Input/output. 
C)  Algorithms. 
D)  Control structures. 
A)  Declarations. 
B)  Input/output. 
C)  Algorithms. 
D)  Control structures.

Question 12

Which of the following encompasses the other three?

Accepted Answer

A)  Sequence structure. 
B)  Repetition structure. 
C)  Control structure. 
D)  Selection structure. 
A)  Sequence structure. 
B)  Repetition structure. 
C)  Control structure. 
D)  Selection structure.

Question 13

Which operation does not take place in the following example? int x{21};
Double y{6};
Double z{14};
Y = x / z;
X = 5.5 * y;

Accepted Answer

A)  Implicit conversion. 
B)  Promotion. 
C)  Explicit conversion. 
D)  Truncation. 
A)  Implicit conversion. 
B)  Promotion. 
C)  Explicit conversion. 
D)  Truncation.

Question 14

Which of the following statements initializes the unsigned int variable counter to 10?

Accepted Answer

A)  unsigned int counter = 10; 
B)  unsigned int counter = {10}; 
C)  unsigned int counter{10}; 
D)  All of the above. 
A)  unsigned int counter = 10; 
B)  unsigned int counter = {10}; 
C)  unsigned int counter{10}; 
D)  All of the above.

Question 15

Specifying the order in which statements are to be executed in a computer program is called:

Accepted Answer

A)  An algorithm. 
B)  Transfer of control. 
C)  Program control. 
D)  Pseudocode. 
A)  An algorithm. 
B)  Transfer of control. 
C)  Program control. 
D)  Pseudocode.

Question 16

If grade has the value of 60, what will the following code display? if (grade >= 60) {
Cout << "Passed";
}

Accepted Answer

A)  nothing. 
B)  60 
C)  Passed 
D)  cout << "Passed"; 
A)  nothing. 
B)  60 
C)  Passed 
D)  cout << "Passed";

Question 17

An uninitialized local variable contains:

Accepted Answer

A)  The value last stored in the memory location reserved for that variable. 
B)  No value. 
C)  A value of zero. 
D)  A randomly assigned value. 
A)  The value last stored in the memory location reserved for that variable. 
B)  No value. 
C)  A value of zero. 
D)  A randomly assigned value.

Question 18

Assuming that x is equal to 4, which of the following statements will not result in y containing the value 5 after execution?

Accepted Answer

A)  y = 5; 
B)  y = x++; 
C)  y = ++x; 
D)  y = x + 1 
A)  y = 5; 
B)  y = x++; 
C)  y = ++x; 
D)  y = x + 1

Question 19

If x initially contains the value 3, which of the following sets x to 7?

Accepted Answer

A)  x ++ 4; 
B)  x += 4; 
C)  x =+ 4; 
D)  x + 4 = x; 
A)  x ++ 4; 
B)  x += 4; 
C)  x =+ 4; 
D)  x + 4 = x;

Question 20

Which of the following will not increment c by 1?

Accepted Answer

A)  c + 1; 
B)  c++; 
C)  ++c; 
D)  c += 1; 
A)  c + 1; 
B)  c++; 
C)  ++c; 
D)  c += 1;

Exam 4: Control Statements, Assignment, and Operators

In an activity diagram for an algorithm, what does a solid circle surrounded by a hollow circle represent?

The conditional operator (?:):

Having a loop within a loop is known as:

What is the final value of x after performing the following operations? int x{21}; Double y{6}; Double z{14}; Y = x / z; X = 5.5 * y;

Which of the following statements about nested if…else statements is true?

What is wrong with the following while loop? while (sum <= 1000) { Sum = sum - 30; }

Which of the following is a double-selection statement?

Assuming that x and y are equal to 3 and 2, respectively, after the statement x -= y executes, the values of x and y will be:

Which of the following operations has the highest precedence?

Which of the following statements is false?

Pseudocode normally does not include:

Which of the following encompasses the other three?

Which operation does not take place in the following example? int x{21}; Double y{6}; Double z{14}; Y = x / z; X = 5.5 * y;

Which of the following statements initializes the unsigned int variable counter to 10?

Specifying the order in which statements are to be executed in a computer program is called:

If grade has the value of 60, what will the following code display? if (grade >= 60) { Cout << "Passed"; }

An uninitialized local variable contains:

Assuming that x is equal to 4, which of the following statements will not result in y containing the value 5 after execution?

If x initially contains the value 3, which of the following sets x to 7?

Which of the following will not increment c by 1?

Introduction to Computers and C++

Introduction to C Programming; Inputoutput and Operators

Introduction to Classes, Objects and Strings

Control Statements, Logical 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

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