12. Which code segment results in "true" being returned if a number is even? Replace "MISSING CONDITION" with thecorrect code segment.function isEven(num){if(MISSING CONDITION){return true;} else {return false;A. num % 2 == 0;B. num % 0 == 2;C. num % 1 == 0;D. num % 1 == 2:Powered by Linklt!оо

Option A - A variable num modulo 2 is used to check the num variable is even or not. The modulo…

Answered: Which code segment results in "true"…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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12. Which code segment results in "true" being returned if a number is even? Replace "MISSING CONDITION" with the
correct code segment.
function isEven(num){
if(MISSING CONDITION){
return true;
} else {
return false;
A. num % 2 == 0;
B. num % 0 == 2;
C. num % 1 == 0;
D. num % 1 == 2:
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Step 1

Option A - A variable num modulo 2 is used to check the num variable is even or not. The modulo operator is used to check the remainder value.
Option B - Same num variable is checking with the value of modulo 0. The even number checks based on the value modulo 2, not 0 and it is not equivalent to 2. Numbers are interchanged in this condition.
Option C - The modulo 1 is not checking for the even number; the condition should return 'true' as per the specification prompted.
Option D - The equivalent number value is not 2 and then the modulo should be modulo 2, not modulo 1. It will return the 'false' and wrong checks.

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