Question 1

You can use either a(n) ____ or a ____ to store the value of a logical expression.

Accepted Answer

A)  float, double 
B)  char, string 
C)  int, bool 
D)  float, string 
A)  float, double 
B)  char, string 
C)  int, bool 
D)  float, string

Question 2

What is the value of x after the following statements execute? int x;
X = (5 <= 3 && 'A' < 'F') ? 3 : 4

Accepted Answer

A)  2 
B)  3 
C)  4 
D)  5 
A)  2 
B)  3 
C)  4 
D)  5

Question 3

The expression (x >= 0 && x = 100.

Accepted Answer

A) True 
 B)False

Question 4

A control structure alters the normal sequential flow of execution in a program.

Accepted Answer

A) True 
 B)False

Question 5

Putting ____________________ in front of a logical expression reverses the value of that logical expression.

Accepted Answer

The answer of Putting ____________________ in front of a logical...

Question 6

Assume you have three int variables: x = 2, y = 6, and z.Choose the value of z in the following expression: z = (y / x > 0) ? x : y;.

Accepted Answer

A)  2 
B)  3 
C)  4 
D)  6 
A)  2 
B)  3 
C)  4 
D)  6

Question 7

The operators !, &&, and || are called relational operators.

Accepted Answer

A) True 
 B)False

Question 8

In C++, the operators != and == have the same order of precedence.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following operators has the highest precedence?

Accepted Answer

A)  ! 
B)  * 
C)  % 
D)  = 
A)  ! 
B)  * 
C)  % 
D)  =

Question 10

Putting a semicolon after the parentheses following the expression in an if statement (that is, before the statement) is a(n) ____________________ error.

Accepted Answer

The answer of Putting a semicolon after the parentheses following...

Question 11

Which of the following expressions correctly determines that x is greater than 10 and less than 20?

Accepted Answer

A)  10 < x < 20 
B)  (10 < x < 20) 
C)  10 < x && x < 20 
D)  10 < x || x < 20 
A)  10 < x < 20 
B)  (10 < x < 20) 
C)  10 < x && x < 20 
D)  10 < x || x < 20

Question 12

Which of the following will cause a logical error if you are attempting to compare x to 5?

Accepted Answer

A)  if (x == 5) 
B)  if (x = 5) 
C)  if (x = 5) 
A)  if (x == 5) 
B)  if (x = 5) 
C)  if (x = 5)

Question 13

Suppose P and Q are logical expressions.The logical expression P && Q is true if both P and Q are true.

Accepted Answer

A) True 
 B)False

Question 14

For a program to use the assert function, it must include which of the following?

Accepted Answer

A) #include B) #include C) #include D) #include NDEBUG A) #include B) #include C) #include D) #include NDEBUG

Question 15

The ____________________ of relational and logical operators is said to be from left to right.

Accepted Answer

The answer of The ____________________ of relational and logical operators...

Question 16

Suppose x is 5 and y is 7.Choose the value of the following expression:

Accepted Answer

A)  false 
B)  true 
C)  0 
D)  null 
A)  false 
B)  true 
C)  0 
D)  null

Question 17

Suppose found = true and num = 6.The value of the expression (!found) || (num > 6) is ____________________.

Accepted Answer

The answer of Suppose found = true and num =...

Question 18

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

Accepted Answer

A)  2 
B)  5 
C)  8 
D)  10 
A)  2 
B)  5 
C)  8 
D)  10

Question 19

Suppose that x is an int variable.Which of the following expressions always evaluates to true?

Accepted Answer

A)  (x > 0) || ( x = 0) || (x == 0) 
C)  (x > 0) && ( x  0) && (x == 0) 
A)  (x > 0) || ( x = 0) || (x == 0) 
C)  (x > 0) && ( x  0) && (x == 0)

Question 20

The value of the expression 7 + 8 <= 15 is ____________________.

Accepted Answer

A) True 
 B)False

Exam 4: Control Structures I Selection

You can use either a(n) ____ or a ____ to store the value of a logical expression.

What is the value of x after the following statements execute? int x; X = (5 <= 3 && 'A' < 'F') ? 3 : 4

The expression (x >= 0 && x <= 100) evaluates to false if either x < 0 or x >= 100.

A control structure alters the normal sequential flow of execution in a program.

Putting ____________________ in front of a logical expression reverses the value of that logical expression.

Assume you have three int variables: x = 2, y = 6, and z.Choose the value of z in the following expression: z = (y / x > 0) ? x : y;.

The operators !, &&, and || are called relational operators.

In C++, the operators != and == have the same order of precedence.

Which of the following operators has the highest precedence?

Putting a semicolon after the parentheses following the expression in an if statement (that is, before the statement) is a(n) ____________________ error.

Which of the following expressions correctly determines that x is greater than 10 and less than 20?

Which of the following will cause a logical error if you are attempting to compare x to 5?

Suppose P and Q are logical expressions.The logical expression P && Q is true if both P and Q are true.

For a program to use the assert function, it must include which of the following?

The ____________________ of relational and logical operators is said to be from left to right.

Suppose x is 5 and y is 7.Choose the value of the following expression:

Suppose found = true and num = 6.The value of the expression (!found) || (num > 6) is ____________________.

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

Suppose that x is an int variable.Which of the following expressions always evaluates to true?

The value of the expression 7 + 8 <= 15 is ____________________.

An Overview of Computers and Programming Languages

Basic Elements of C++

Inputoutput

Control Structures Ii Repetition

User-Defined Function

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

Arrays

Records Structs

Classes and Data Abstraction

Inheritance and Composition

Pointers, Classes, Virtual Functions, and Abstract Classes

Operator Overloading and Templates

Exception Handling

Recursion

Linked Lists

Stacks and Queue

Searching and Sorting Algorithms

Binary Trees

Graph Algorithms

Standard Template Library

Filters

You can use either a(n) or a to store the value of a logical expression.