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D3.js Multiple-Choice Questions (MCQs)

D3.js is a JavaScript library. It is used to implement dynamic, interactive, and data visualizations in web browsers. D3.js is the successor to the earlier Protovis framework.

D3.js MCQs: This section contains multiple-choice questions and answers on the various topics of D3.js. Practice these MCQs to test and enhance your skills on D3.js.

List of D3.js MCQs

1. D3.js stands for ____.

1. Data document and dom manipulation
2. Data-driven documents
3. Dom data documents

Answer: B) Data-driven documents

Explanation:

D3.js stands for data-driven documents.

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2. D3.js is a ____ library.

1. JavaScript
2. Python
3. Java
4. Php

Answer: A) JavaScript

Explanation:

D3.js is a JavaScript library.

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3. Which of the following browsers does D3.js supports?

1. Chrome, Edge
2. Firefox
3. Safari
4. All of the above

Answer: D) All of the above

Explanation:

D3.js support the following browsers:

• Chrome, Edge
• Firefox
• Safari
• I3 9+

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4. Does D3.js runs on a node?

1. Yes
2. No

Answer: A) Yes

Explanation:

Yes, D3.js runs on a node.

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5. Is D3.js an open-source library?

1. Yes
2. No

Answer: A) Yes

Explanation:

D3.js is an open-source library.

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6. DOM stands for ____.

1. Document-oriented Model
2. Data object model
3. Data-oriented model
4. Document object model

Answer: D) Document object model

Explanation:

D3.js stands for document object model.

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7. In d3.js, a ____ is a function that maps input values to output values.

1. Axis
2. Transition
3. Scale
4. Selection

Answer: C) Scale

Explanation:

In d3.js, a scale is a function that maps input values to output values.

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8. ____ are used to designate the data values on a scale and assist consumers in comprehending the meaning of a display.

1. Axis
2. Transition
3. Path
4. Layout
5. Selection

Answer: A) Axis

Explanation:

Axis are used to designate the data values on a scale and assist consumers in comprehending the meaning of a display.

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9. A smooth, animated shift in the look or behavior of components in visualization is referred to as a ____ in d3.js.

1. Events
2. Transition
3. Path
4. Layout
5. Selection

Answer: B) Transition

Explanation:

A smooth, animated shift in the look or behavior of components in a visualization is referred to as a transition in d3.js.

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10. SVG stands for ____.

1. Scale vector geographically
2. Scalable vector graphics
3. Scale visual graphics
4. Scalable visual graphically

Answer: B) Scalable vector graphics

Explanation:

SVG stands for Scalable vector graphics.

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11. Does IE 8 browsers support SVG?

1. Yes
2. C

Answer: B) No

Explanation:

Except for Internet Explorer 8 and lower, all browsers support SVG.

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12. SVG's default unit of measurement is ____?

1. Megapixel
2. Byte
3. Pixel
4. Inches

Answer: C) Pixel

Explanation:

SVG's default unit of measurement is pixels.

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13. In d3.js, a ____ is a collection of DOM items that match a particular selector.

1. Selection
2. Path
3. Events
4. Transition

Answer: A) Selection

Explanation:

In d3.js, a selection is a collection of DOM items that match a particular selector.

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14. All DOM items are selected by matching the specified CSS selector using which of the following method?

1. Selects
2. AllSelects
3. SelectAll
4. None

Answer: C) SelectAll

Explanation:

All DOM items are selected by matching the specified CSS selector using the selectall() method.

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15. The ____ function adds a new element as the final child of the current selection's element.

1. End()
2. Add()
3. AddLast()
4. Append()

Answer: D) Append()

Explanation:

The append() function adds a new element as the final child of the current selection's element.

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16. ____ allows you to draw various forms such as lines, rectangles, circles, ellipses, and so on.

1. SVG
2. Shape
3. Array
4. Graphics

Answer: A) SVG

Explanation:

SVG allows you to draw various forms such as lines, rectangles, circles, ellipses, and so on.

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17. The ____ function enables a transition to occur after a specified amount of time.

1. Wait()
2. Delay()
3. Duration()

Answer: B) Delay()

Explanation:

The delay() function enables a transition to occur after a specified amount of time.

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18. A ____ is a string of one or more characters that is used to define the border between distinct, independent areas of plain text or other data.

1. Observable
2. Delimiter
3. Divider

Answer: B) Delimiter

Explanation:

A delimiter is a string of one or more characters that is used to define the border between distinct, independent areas of plain text or other data.

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19. TSV stands for ____.

1. Time-separated value
2. Tab surrounded Value
3. Tab-separated value
4. Time-surrounded value

Answer: C) Tab-separated value

Explanation:

TSV stands for tab-separated value.

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20. Does XMLHttpRequest supports both asynchronous and synchronous request?

1. Yes
2. No

Answer: A) Yes

Explanation:

XMLHttpRequest support both asynchronous and synchronous request.

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21. ____ helps to scale your content.

1. Transitioning
2. Moving
3. Scaling
4. Zooming

Answer: D) Zooming

Explanation:

Zooming helps to scale your content.

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22. Which method is used in the creation of a new dragging?

1. D3.newdrag()
2. D3.drag()
3. D3.new()
4. D3.dragging()

Answer: B) D3.drag()

Explanation:

D3.drag() method is used in the creation of a new dragging.

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23. Which method is used to associate data with certain components?

1. D3.data()
2. D3.dataAttr
3. D3.database
4. None

Answer: A) D3.data()

Explanation:

D3.data() method is used to associate data with certain components.

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24. ____ method groups and aggregates data depending on one or more factors.

1. D3.nested()
2. D3.groups()
3. D3.nest()
4. D3.cluster()

Answer: C) D3.nest()

Explanation:

D3.drag() method groups and aggregates data depending on one or more factors.

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25. The ____ represents the bounds of your data.

1. Area
2. Domain
3. Range

Answer: B) Domain

Explanation:

The domain represents the bounds of your data.

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26. With D3.js, you may acquire the Mouse position by using the ____ method.

1. d3.position()
2. d3.mousepos()
3. d3.mouse()

Answer: C) d3.mouse()

Explanation:

With D3.js, you may acquire the Mouse position by using the d3.mouse() method.

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27. ____ is commonly used to create data visualizations and other static or interactive visuals.

1. SVG
2. Canvas
3. Bitmap
4. XML

Answer: A) SVG

Explanation:

SVG is commonly used to create data visualizations and other static or interactive visuals.

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28. Canvas is recommended for producing dynamic visuals such as games and animations.

1. SVG
2. Canvas
3. Bitmap
4. XML

Answer: B) Canvas

Explanation:

Canvas is recommended for producing dynamic visuals such as games and animations.

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29. ____, is a low-level graphics API that allows for bitmap drawing.

1. SVG
2. Canvas
3. Bitmap
4. XML

Answer: B) Canvas

Explanation:

Canvas, is a low-level graphics API that allows for bitmap drawing.

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30. Canvas is ____.

1. Stateless
2. Statefull
3. Both
4. None

Answer: A) Stateless

Explanation:

Canvas is stateless.

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