FiltersDone

Question type

Essay

Multiple Choice

Short Answer

True False

Matching

Exam 4: Control Structures I Selection

Show Answer

Share

---

All types

Filters

Study FlashcardsPractice ExamLearn

Question 1

True/False

Review LaterAdd Note

Review Later

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

A) True
B) False

Correct Answer

verified

Show Answer

Question 2

True/False

Review LaterAdd Note

Review Later

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

A) True
B) False

Correct Answer

verified

Show Answer

Question 3

Multiple Choice

Review LaterAdd Note

Which of the following operators has the lowest precedence?

In C++, both ! and != are relational operators.

Consider the following statements. int score; string grade; if (score >= 65) grade = "pass"; else grade = "fail"; If score is equal to 75, the value of grade is "____________________".

The term ____________________ describes a process in which the computer evaluates a logical expression from left to right and stops as soon as the value of the expression is known.

You can disable assert statements by using which of the following?

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

Suppose x is 5 and y is 7. Choose the value of the following expression: (x != 7) && (x <= y)

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

Which of the following is a relational operator?

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

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

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

The result of a logical expression cannot be assigned to an int variable, but it can be assigned to a bool variable.

What is the output of the following C++ code? int x = 35; Int y = 45; Int z; If (x > y) Z = x + y; Else Z = y - x; Cout << x << " " << y << " " << z << endl;

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;.

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

What is the output of the following code? char lastInitial = 'S'; switch (lastInitial) { case 'A': Cout amanda "section 1" amandaendl; break; case 'B': cout << "section 2" << endl; break; case 'C': cout << "section 3" << endl; break; case 'D': cout << "section 4" << endl; break; default: cout << "section 5" << endl; }

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