Test Bank for C++ How to Program, 10th Edition

C++ How to Program, 10/e Multiple Choice Test Bank 1 of 4 Chapter 2: Introduction to C++ Programming; Input/Output and Operators Section 2.2 First Program in C++: Printing a Line of Text 2.2 Q1: End-of-line comments that should be ignored by the compiler are denoted using: a. Two forward slashes (//). b. Three forward slashes (///). c. A slash and a star (/*). d. A slash and two stars (/**). ANS: a. Two forward slashes (//). 2.2 Q2: Which of the following does not cause a syntax error to be reported by the C++ compiler? a. Mismatched {}. b. Missing */ in a comment. c. Missing ; at the end of a statement. d. Extra blank lines. ANS: d. Extra blank lines. 2.2 Q3: Which of the following is not a syntax error? a. std::cout << 'Hello world! '; b. std::cout << "Hello world! "; c. std::cout << "Hello world! "; d. std::cout << Hello world!; ANS: c. std::cout << "Hello world! "; 2.2 Q4: The escape sequence for a newline is: a. n b. t c. r d. a ANS: a. n 2.2 Q5: Which of the following statements would display the phrase C++ is fun? a. std::cout << "Thisis funrC++ "; b. std::cout << '++ is fun'; c. std::cout << ""C++ is fun""; d. std::cout << C++ is fun; ANS: a. std::cout << "Thisis funrC++ "; Section 2.3 Modifying Our First C++ Program 2.3 Q1: Which of the following is not a valid C++ identifier? a. my Value b. _AAA1 c. width d. m_x ANS: a. my Value (Identifiers may not contain blanks) 2.3 Q2: Which is the output of the following statements? std::cout << "Hello "; std::cout << "World"; © Copyright 1992-2017 by Deitel & Associates, Inc. and Pearson Education, Inc. All Rights Reserved. C++ How to Program, 10/e Multiple Choice Test Bank 2 of 4 a. Hello World b. World Hello c. Hello World d. World Hello ANS: a. Hello World 2.3 Q3: Which of the following is the escape character? a. * b. c. n d. " ANS: b. 2.3 Q4: Which of the following code segments prints a single line containing hello there with the words separated by a single space? a. std::cout << "hello "; std::cout << " there"; b. std::cout << "hello" , " there"; c. std::cout << "hello"; std::cout << "there"; d. std::cout << "hello"; std::cout << " there"; ANS: d. std::cout << "hello"; std::cout << " there"; Section 2.4 Another C++ Program: Adding Integers 2.4 Q1: Which of the following is a variable declaration statement? a. int total; b. #include c. int main() d. // first string entered by user ANS: a. int total; 2.4 Q2: The ________ object enables a program to read data from the user. a. std::cout. b. std::cin. c. std::cread. d. std::cget. ANS:b. std::cin. 2.4 Q3: The assignment operator ________ assigns the value of the expression on its right to the variable on its left. a. c. = d. # ANS: c. =. 2.4 Q4: The std::endl stream manipulator________. a. inputs a newline. b. flushes the output buffer. c. outputs a newline and flushes the output buffer. d. terminates the program. © Copyright 1992-2017 by Deitel & Associates, Inc. and Pearson Education, Inc. All Rights Reserved. C++ How to Program, 10/e Multiple Choice Test Bank 3 of 4 ANS: c. outputs a newline and flushes the output buffer. 2.4 Q5: Which of the following uses C++11’s list initialization to initialize count to 0? a. int count = 0; b. int count[0]; c. int count(0); d. int count{0}; ANS: d. int count{0}; Section 2.5 Memory Concepts 2.5 Q1: Which of the following statements does not overwrite a preexisting value stored in a memory location? a. int a; b. number = 12; c. y = y + 2; d. width = length; ANS: a. int a; 2.5 Q2: Which of the following statements could potentially change the value of number2? a. std::cin >> number2; b. sum = number1 + number2; c. number1 = number2; d. std::cout <> number2; Section 2.6 Arithmetic 2.6 Q1: What is the value of result after the following C++ statements execute? int a{4}; int b{12}; int c{37}; int d{51}; int result{d % a * c + a % b + a}; a. 119 b. 51 c. 127 d. 59 ANS: a. 119. 2.6 Q2: In what order would the following operators be evaluated -, *, /, +, % Assume that if two operations have the same precedence, the one listed first will be evaluated first. a. +, -, /, *, % b. -, +, %, *, / c. -, *, %, +, / d. *, /, %, -, + ANS: d. *, /, %, -, + © Copyright 1992-2017 by Deitel & Associates, Inc. and Pearson Education, Inc. All Rights Reserved. C++ How to Program, 10/e Multiple Choice Test Bank 2.6 Q3: Which of the following is not an arithmetic operator? a. + b. c. = d. % ANS: c. = Section 2.7 Decision Making: Equality and Relational Operators 2.7 Q1: What will be the output after the following C++ statements have been executed? int a{4}; int b{12}; int c{37}; int d{51}; if (a < b) { cout << "a < b" < b) { cout < b” << endl; } if (d <= c) { cout << "d <= c" << endl; } if (c != d) { cout << "c != d" << endl; } a. b. c. d. a < b c != d a < b d b c != d a < b c < d a != b ANS: a. a < b c != d 2.7 Q2: Which of the following is a compilation error? a. Neglecting to declare a local variable in a function before it is used. b. Using a triple equals sign instead of a double equals sign in the condition of an if statement. c. Omitting the left and right parentheses for the condition of an if statement. d. All of the above. ANS: d. All of the above. 2.7 Q3: Each of the following is a relational or equality operator except: a. ANS: b. =! © Copyright 1992-2017 by Deitel & Associates, Inc. and Pearson Education, Inc. All Rights Reserved. 4 of 4