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Javascript
Performance Measures
Quiz 3
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Q.1
What does the JS File return ?
File I/O
Minify JavaScript
HTTP Request
Gzip encoded
Q.2
What is the outcome of using R along with minification?
Sheer file size reduction
File size increase
More efficient
None of the mentioned
Q.3
Which one of the following is more efficient in terms of the file size reduction?
YUI
Closure Compiler (advanced)
Minify
Closure Compiler (simple)
Q.4
Firebug is an extension of which browser?
Mozilla
Chrome
IE
Opera
Q.5
Firebug can be used to inspect
HTML
CSS
DOM
All of the mentioned
Q.6
Why do Web Developers use Firebug?
Track cookies
Track sessions
Both Track cookies and sessions
None of the mentioned
Q.7
What are the goals for using Firebug?
Performance
Adaptability
Complexity
Reliability
Q.8
Which of the following is not a feature of the User Interface?
Skinnable Interface
Resizable Side Panel
Fixed Side Panel
Menu options
Q.9
In order to skip or seek to a desired location in a sound or video, which property becomes helpful?
audioSkip
currentTime
videoSkip
skiptoTime
Q.10
Which of following shows a better runtime performance for coalescing functionality, using functions, and using objects?
Firefox unwoundfun
Firefox UsingFunct
Firefox UsingObject
None of the mentioned
Q.11
How can we define the term Performance?
Speed of the input take in
Speed of the output display
Speed at which application functions
None of the mentioned
Q.12
When is an application said to show a web performance?
Time to respond
Time to load
Time to send a request
All of the mentioned
Q.13
When is an application said to show a runtime performance?
Speed of response to user
Speed of user request
All of the mentioned
None of the mentioned
Q.14
Which of following shows a poorer runtime performance for coalescing functionality, using functions, and using objects?
Firefox unwoundfun
Firefox UsingFunct
Firefox UsingObject
None of the mentioned
Q.15
In how many modes can the Closure compiler be run?
2
3
4
5
Q.16
What is the purpose of the advanced mode in the Closure compiler?
Removing the variables and other parameters
Renaming the variables and other parameters
Slight alteration to improve the runtime performance
None of the mentioned
Q.17
What does the span of time waiting for the page to be useful depend on?
Runtime performance
Web performance
Speed
None of the mentioned
Q.18
What is the advantage of the code produced graphics being smaller than the images themselves?
Bandwidth saving
Increase in bandwidth
Dynamic advantages
None of the mentioned
Q.19
What does the status code 200 indicate?
Error in request
Error in response
Error in server
Successful
Q.20
What does the status code 500 indicate?
Error in request
Error in response
Error in server
Successful
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