Question 1

Given the following JavaScript code:

Which code segment tests the variable value and displays an alert message?

Options :

A : ```javascript

if enabled {

alert('ok');

}

```

B : ```javascript

if (enabled == true){

alert('ok');

}

```

C : ```javascript

if(enabled){

alert('ok');

}

```

D : ```javascript

if enabled == true {

alert('ok');

}

```

Answer: C

Question 2

Given the following HTML:

```html

```

And the style:

```css

.example {

background: red;

}

```

Which line of code changes the background color of thewhen the width is between 600 and 900 pixels or more than 1,100 pixels?

Options :

A : ```css

@media screen and (max-width: 1100px) and (min-width: 600px) {

div.example {

background: yellow;

}

```

B : ```css

@media screen and (max-width: 900px) and (min-width: 600px), (min-width: 1100px) {

div.example {

background: yellow;

}

```

C : ```css

@media screen and (max-width: 900px) and (min-width: 600px) {

div.example {

background: yellow;

}

```

D : ```css

@media screen and (max-width: 900px) and (min-width: 600px), (max-width: 1100px) {

div.example {

background: yellow;

}

```

Answer: B

Question 3

What should be used to request and Update data in the background?

Options :

A : Canvas

B : AJAX

C : API

D : DOM

Answer: B

Question 4

What does a form field default to if the type attribute is omitted from a form?

Options :

A : Date

B : Text

C : Range

D : number

Answer: B

Question 5

A JavaScript programmer defines the following function:

```javascript

function square(number) {

return number * number;

}

```

Which keyword causes the function to send back a result?

Options :

A : return

B : square

C : function

D : number

Answer: A

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