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cs 161Final Exam Study Questions with Correct Verified Answers

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  • Course
  • Cs 161
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  • Cs 161

cs 161Final Exam Study Questions with Correct Verified Answers

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  • September 7, 2024
  • 27
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Cs 161
  • Cs 161
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KenAli
cs 161Final Exam Study Questions with
Correct Verified Answers
Three primary activities of a program are:
A. Variable definitions, operators, lists of key words
B. Lines, statements, punctuation
C. Input, processing, output
D. Integer, floating-point, character definitions - ANSWER C. input, processing, output


A variable's __________ is the part of the program that has access to the variable.
A. Scope
B. Value
C. Data type
D. Assignment - ANSWER a.scope


What is the output of the following statement?


cout << (float) (5 * (9 % 4) / 2) + 2.5 << endl;


A. 5
B. 15
C. 2.5
D. 4.5 - ANSWER D. 4.5

,What will be the output after the following lines of code execute?
bool choice;
choice = true;
cout << "Your choice is " << choice << endl;
A. true
B. Your choice is true
C. Your choice is 1
D. Your choice is choice - ANSWER C. Your choice is 1


A character literal is __________, whereas a string literal is __________.

A. enclosed in quotation marks, enclosed in brackets
B. enclosed in brackets, enclosed in quotation marks

C. enclosed in double quotation marks, enclosed in single quotation marks

D. enclosed in single quotation marks, enclosed in double quotation marks - ANSWER
D.enclosed in single quotation marks, enclosed in double quotation marks


Which of the following is not a valid C++ identifier?
A. April2019
B. employee_num
C. _2user
D. 2user - ANSWER d. 2user


Given that x = 2, y = 1, z = 0, what will the following cout statement display?
cout << "answer = " << (x && y && !z) << endl;
A. answer = 0

B. answer = 1

, C. answer = 2
D. answer = (x && y && !z) - ANSWER B. Answer = 1


When a variable is assigned a number that is too large for its data type, it
A. underflows
B. overflows
C. reverses
D. converts - ANSWER b. overflows


After the following code executes, what is the value of my_value if the user enters 3?
cin >> my_value;
if (my_value > 2)
my_value = my_value + 5;
else if (my_value > 5)

my_value = my_value + 10;
else
my_value = my_value + 20; - ANSWER c. 8


What is the output of the following segment of code if the value 4 is input by the user?

int num;
int total = 0;
cout << "Enter a number from 1 to 10: ";
cin >> num;
switch (num) {
case 1:
case 2: total = 5;
case 3: total = 10;

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