This set of Javascript Multiple Choice Questions & Answers (MCQs) focuses on “Scripted Media”.
1. What is the advantage of the code produced graphics being smaller than the images themselves?
a) Bandwidth saving
b) Increase in bandwidth
c) Dynamic advantages
d) None of the mentioned
View Answer
Explanation: The code used to produce graphics on the client side is typically much smaller than the images themselves, creating a substantial bandwidth savings.
2. Which of the following uses a lot of CPU cycles?
a) GUI
b) Statically generated graphics
c) Dynamically generated graphics
d) All of the mentioned
View Answer
Explanation: Dynamically generating graphics from real-time data uses a lot of CPU cycles.
3. Which HTML element is used to include images?
a) image
b) img
c) src
d) sourcing
View Answer
Explanation: Web pages include images using the HTML img element.
4. What is the purpose of image replacement?
a) To replace an image
b) To implement special effects
c) Removal of image rollovers
d) Implementation of image rollovers
View Answer
Explanation: One common use for image replacement is to implement image rollovers, in which an image changes when the mouse pointer moves over it.
5. When is JavaScript called obtrusive?
a) JavaScript code is medium sized
b) JavaScript code is so small
c) JavaScript code is so large
d) All of the mentioned
View Answer
Explanation: When the amount of JavaScript code is so large that it effectively obscures the HTML, we call JavaScript as obtrusive.
6. Which is a possible way of finding all the img elements in the document?
a) document(images)
b) document.images[].
c) document(img)
d) all of the mentioned
View Answer
Explanation: The best suited option is document.image[] to find all img elements in the document.
7. Which of the following elements are used to include audio?
a) audio
b) video
c) svg
d) all of the mentioned
View Answer
Explanation: The audio tag is used to include audio in the HTML document.
8. Which of the following attributes are common to both audio and video?
a) enter
b) control
c) controls
d) all of the mentioned
View Answer
Explanation: Both audio and video support a controls attribute.
9. Which of the following is not the property of the video tag?
a) width
b) height
c) breadth
d) none of the mentioned
View Answer
Explanation: The video tag does not contain a breadth property.
10. Which of the following is the parameter used to invoke the Audio() constructor?
a) File type
b) Music type
c) Both File and Music
d) None of the mentioned
View Answer
Explanation: The parameter type of the Audio() constructor is any file type that contains audio to be played.
Sanfoundry Global Education & Learning Series – Javascript Programming.
