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feat(curriculum): Add questions to javascript Object oriented programming (#56519)
Co-authored-by: Naomi <accounts+github@nhcarrigan.com> Co-authored-by: Ilenia <26656284+ilenia-magoni@users.noreply.github.com> Co-authored-by: Krzysztof G. <60067306+gikf@users.noreply.github.com>
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DevFreezy
@@ -17,439 +17,455 @@ To pass the quiz, you must correctly answer at least 17 of the 20 of the questio
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#### --text--
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Placeholder question
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From the statements below, which one correctly defines OOP?
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#### --distractors--
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Placeholder distractor 1
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It is a programming model that is more concerned with functions.
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---
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Placeholder distractor 2
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It is a programming model that is focused on the logic of the program.
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---
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Placeholder distractor 3
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It is a programming model that applies to all programming problems to solve challenges.
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#### --answer--
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Placeholder answer
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It is a programming model concerned with data.
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### --question--
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#### --text--
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Placeholder question
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The following are advantages of OOP except ONE, which one?
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#### --distractors--
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Placeholder distractor 1
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Achieves security.
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---
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Placeholder distractor 2
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Enhances code reusability.
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---
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Placeholder distractor 3
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It makes a program flexible.
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#### --answer--
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Placeholder answer
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It makes multi-threading easier.
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### --question--
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#### --text--
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Placeholder question
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Which of the following statements is true for OOP?
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#### --distractors--
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Placeholder distractor 1
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Multiple instances of objects cannot exist.
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---
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Placeholder distractor 2
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OOP can be applied in all cases.
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---
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Placeholder distractor 3
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Procedural programs are more secure than OOP programs.
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#### --answer--
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Placeholder answer
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Private members are meant to achieve encapsulation.
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### --question--
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#### --text--
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Placeholder question
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The following are concepts of OOP except ONE. Which one?
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#### --distractors--
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Placeholder distractor 1
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Polymorphism.
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---
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Placeholder distractor 2
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Encapsulation.
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---
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Placeholder distractor 3
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Inheritance.
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#### --answer--
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Placeholder answer
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Data destruction.
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### --question--
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#### --text--
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Placeholder question
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Which statement is FALSE for OOP in Javascript language?
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#### --distractors--
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Placeholder distractor 1
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Classes are absent in traditional Javascript language.
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---
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Placeholder distractor 2
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Objects inherit from other objects.
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---
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Placeholder distractor 3
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Constructors initialize objects.
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#### --answer--
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Placeholder answer
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Methods can be public, or protected.
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### --question--
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#### --text--
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Placeholder question
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From the statements below, which one is FALSE about an object?
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#### --distractors--
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Placeholder distractor 1
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It is also called an instance.
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---
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Placeholder distractor 2
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Models a real-world.
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---
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Placeholder distractor 3
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It can be broken down into properties and methods.
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#### --answer--
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Placeholder answer
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Objects have to be unique.
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### --question--
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#### --text--
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Placeholder question
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```js
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function Person(age, gender) {
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this.age = age;
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this.gender = gender;
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}
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```
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What is `this` used for in the code above ?
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#### --distractors--
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Placeholder distractor 1
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It is used to emphasize an object.
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---
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Placeholder distractor 2
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It is used to achieve inheritance.
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---
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Placeholder distractor 3
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It is used to achieve polymorphism.
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#### --answer--
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Placeholder answer
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It refers to the newly created instance of an object.
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### --question--
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#### --text--
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Placeholder question
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Which concept of OOP is achieved by using the 'extends' keyword?
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#### --distractors--
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Placeholder distractor 1
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Abstraction.
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---
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Placeholder distractor 2
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Aggregation.
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---
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Placeholder distractor 3
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Metamorphism.
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#### --answer--
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Placeholder answer
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Inheritance.
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### --question--
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#### --text--
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Placeholder question
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Which of the following is NOT an advantage of encapsulation?
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#### --distractors--
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Placeholder distractor 1
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Integrity.
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---
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Placeholder distractor 2
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Security.
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---
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Placeholder distractor 3
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Maintainability.
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#### --answer--
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Placeholder answer
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Efficiency.
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### --question--
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#### --text--
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Placeholder question
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From the statements below, which one differentiates encapsulation from data abstraction?
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#### --distractors--
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Placeholder distractor 1
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Data abstraction binds data while encapsulation removes unnecessary detail.
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---
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Placeholder distractor 2
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Data abstraction subtracts additional data while encapsulation exposes data.
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---
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Placeholder distractor 3
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Data abstraction exposes data while encapsulation binds data.
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#### --answer--
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Placeholder answer
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Data abstraction removes unnecessary details while encapsulation binds data.
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### --question--
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#### --text--
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Placeholder question
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Which keyword is used to create a new instance of an object in JavaScript?
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#### --distractors--
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Placeholder distractor 1
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This.
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---
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Placeholder distractor 2
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Class.
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---
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Placeholder distractor 3
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Function.
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#### --answer--
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Placeholder answer
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New.
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### --question--
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#### --text--
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Placeholder question
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Which of the following is TRUE?
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#### --distractors--
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Placeholder distractor 1
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Code reusability is achieved by polymorphism.
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---
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Placeholder distractor 2
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OOP in Javascript is different from other programming languages.
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---
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Placeholder distractor 3
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Objects contain methods and properties.
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#### --answer--
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Placeholder answer
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All of the options are true.
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### --question--
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#### --text--
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Placeholder question
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What is the purpose of a constructor function in JavaScript?
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#### --distractors--
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Placeholder distractor 1
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To extend object properties.
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---
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Placeholder distractor 2
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To encapsulate methods.
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---
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Placeholder distractor 3
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To create classes.
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#### --answer--
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Placeholder answer
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To instantiate objects.
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### --question--
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#### --text--
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Placeholder question
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Which one of the following is TRUE about classes?
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#### --distractors--
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Placeholder distractor 1
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A class contains objects with similar properties and methods.
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---
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Placeholder distractor 2
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Objects are instances of classes.
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---
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Placeholder distractor 3
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Different classes can have similar methods.
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#### --answer--
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Placeholder answer
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All of the options are true.
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### --question--
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#### --text--
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Placeholder question
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What instantiates a class?
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#### --distractors--
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Placeholder distractor 1
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Object.
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---
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Placeholder distractor 2
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Keywords.
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---
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Placeholder distractor 3
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Variables.
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#### --answer--
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Placeholder answer
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Constructor.
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### --question--
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#### --text--
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Placeholder question
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```js
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class Course {
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#module;
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constructor(module) {
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this.#module = module;
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}
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}
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```
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Which access modifier is added to `#module` above?
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#### --distractors--
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Placeholder distractor 1
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Public.
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---
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Placeholder distractor 2
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Personal.
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---
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Placeholder distractor 3
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Global.
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#### --answer--
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Placeholder answer
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Private.
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### --question--
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#### --text--
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Placeholder question
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The keyword `super` is used to call the properties and methods of which class?
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#### --distractors--
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Placeholder distractor 1
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Child.
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---
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Placeholder distractor 2
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Private.
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---
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Placeholder distractor 3
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Personal.
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#### --answer--
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Placeholder answer
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Parent.
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### --question--
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#### --text--
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Placeholder question
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Which of the following is true about private members?
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#### --distractors--
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Placeholder distractor 1
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It can be accessed from outside of the class.
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---
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Placeholder distractor 2
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It can be called at any point in the program.
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---
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Placeholder distractor 3
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It enhances security.
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#### --answer--
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Placeholder answer
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None of the above.
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### --question--
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#### --text--
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Placeholder question
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which of the following is FALSE in OOP?
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#### --distractors--
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Placeholder distractor 1
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Polymorphism changes the characteristics.
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---
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Placeholder distractor 2
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Inheritance gets the characteristics from a base class.
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---
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Placeholder distractor 3
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Both inheritance and polymorphism can be used to reduce redundancy in the code.
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#### --answer--
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Placeholder answer
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Private members can be inherited outside the class.
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### --question--
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#### --text--
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Placeholder question
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Which of the following is FALSE about encapsulation?
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#### --distractors--
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Placeholder distractor 1
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It restricts access to members.
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---
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Placeholder distractor 2
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It binds data.
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---
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Placeholder distractor 3
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It binds methods.
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#### --answer--
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Placeholder answer
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Encapsulation is the way in which the same method is applied to different objects and the methods respond with different outputs.
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