Computer Software Applications

Question 1 / 10

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According to the source text, what type of language is JavaScript?

Strongly typed and compiled

Weakly typed and dynamically typed

Statically typed and interpreted

Purely declarative

Question 2 / 10

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In what year was JavaScript created, and by whom?

1990 by Tim Berners-Lee

2005 by Google

1995 by Brendan Eich

2015 by the ECMAScript committee

Question 3 / 10

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What was the original name of JavaScript?

Java

LiveScript

ECMAScript

WebScript

Question 4 / 10

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Which of the following best describes JavaScript's role in client-side development?

It supplies objects relevant to running JavaScript on a server.

It supplies objects to control a browser and its Document Object Model (DOM).

It communicates directly with the operating system for file manipulation.

It only handles database communication.

Question 5 / 10

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What server-side framework for JavaScript is mentioned as being the most famous these days?

AngularJS

ReactJS

VueJS

node.js

Question 6 / 10

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Why is JavaScript considered a lightweight programming language?

It can only be used for simple calculations.

It requires a powerful CPU and large amounts of RAM.

It has low CPU usage, is easy to implement, and has a minimalist syntax.

It does not support complex paradigms or logic.

Question 7 / 10

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Which keyword for declaring variables was used in all JavaScript code from 1995 to 2015?

let

const

var

auto

Question 8 / 10

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Which two keywords were added to JavaScript in 2015 for variable declaration?

var and const

let and const

auto and let

static and var

Question 9 / 10

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What happens if you re-declare a JavaScript variable that was originally declared with var?

It throws a syntax error.

The variable becomes undefined.

It will not lose its value.

The program will crash.

Question 10 / 10

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What is the result of attempting to re-declare a variable using the let keyword?

The variable's value is reset to its default.

The operation is successful but considered bad practice.

The script will not work and an error will be thrown.

The new declaration is simply ignored.