exam-instructions.md

Exam instructions

You will receive 20 of multiple and single choice questions (in English). To prepare, you must review all of the course modules and continue working on your project for practice.

There will be two types of questions:

• Understanding of JavaScript (and React, Node.js, Next.js) blocks of code
• Understanding of the passed concepts

During preparation, you focus on:

• Core concepts of Node.js, NPM, React, REST API, Next.js, Routing, Supabase OAuth2 and OIDC
• JavaScript syntax, destructuring assignments, async vs sync functions
• Working with React Components and JSX
• Etc.

Good luck!

Example questions

Question 1

Considering the following MyComponent React component:

const MyComponent = ({ header, children }) => (
  <div>
    <header>{header}</header>
    <main>{children}</main>
  </div>
)

What is(are) correct implementation(s) to make the HTML layout like this:

<div>
  <header>I am header</header>
  <main>I am main</main>
</div>

• A:

  const App = () => {
    return (
      <MyComponent header="I am header">
        I am main
      </MyComponent>
    )
  }

• B:

  const App = () => {
    return (
      <MyComponent header="I am header">
        <div>
          I am main
        </div>
      </MyComponent>
    )
  }

• C:

  const App = () => {
    return (
      <MyComponent header="I am header" children="I am main"/>
    )
  }

• D:

  const App = () => {
    return (
      <MyComponent>
        <header>I am header</header>
        <children>I am main</children>
      </MyComponent>
    )
  }

Question 2

You have the following JavaScript object:

const a = {
  b: [
    { c:1 },
    { d:2 }
  ],
}

Choose all possible equivalents of const d = a.b[1].d in order to access the d property using destructured assignment:

• A:

  const {b:[,{d}]} = a

• B:

  const {b:[{d}]} = a

• C:

  const [, d] = a.b

• D:

  const [, {d}] = a.b

Question 3

What is(are) correct statement(s) about OAuth2 and OpenID Connect?

• A: OpenID Connect is an alternative to OAuth2.
• B: OAuth2 extends OpenID Connect.
• C: They implements Single sign-on (SSO) for applications.
• D: OAuth2 provides authentication.

Question 4

Considering a package.json file:

{
  "name": "my_app",
  "version": "~1.0.0",
  "dependencies": {
    "my_dep_1": "^2.4.2"
    "my_dep_2": "1.0.0"
  }
}

From the following statements, select the ones that are correct:

• A: version property is invalid.
• B: If version 2.5.0 of my_dep_1 is released, it will be downloaded and used.
• C: If version 3.0.0 of my_dep_1 is released, it will be used.
• D: The JSON syntax is valid.