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Exam 70-486 All Questions

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Exam 70-486 topic 1 question 51 discussion

Actual exam question from Microsoft's 70-486
Question #: 51
Topic #: 1
[All 70-486 Questions]

You are developing an application that uses many small images for various aspects of the interface.
The application responds slowly when additional resources are being accessed.
You need to improve the performance of the application.
What should you do?

  • A. Preload all the images when the client connects to ensure that the images are cached.
  • B. Combine all the images into a single image and use CSS to create sprites.
  • C. Host all images on an alternate server and provide a CDN. [1]
Show Suggested Answer Hide Answer
Suggested Answer: C 🗳️

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SG
Highly Voted 5 years, 10 months ago
it should be B
upvoted 11 times
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Aghie
Highly Voted 5 years, 9 months ago
its B. https://www.codeproject.com/Articles/235646/Package-that-reduces-page-load-times-by-compressin
upvoted 5 times
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zinza
Most Recent 4 years, 7 months ago
Source: https://www.2passeasy.com/dumps/70-486-a-2829.html Explanation: Because browsers limit how many concurrent HTTP requests they make to a website, a web page with many small icon images can result in a longer load time. You can combine many small images into a single larger image - a CSS sprite - using the free ASP.NET Sprite and Image Optimization Library available from Microsoft. Reference: CSS Sprites and the ASP.NET Sprite and Image Optimization Library ( http://dotnetslackers.com/articles/aspnet/CSS-Sprites-and-the-ASP-NET-Sprite-and-Image-Optimization-Library.aspx)
upvoted 1 times
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mr_
5 years ago
I would go for B - create sprites. In the question there is big stress on loading performance of many small images. It is obvious that sprites are meant and were invented to solve exactly that problem. So in my opinion for sure it is true that sprites would help solving given problem, regardless of any sort of MS recommendation, so I cannot believe it is not right answer.
upvoted 4 times
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JosepP
5 years ago
It should be B: https://css-tricks.com/css-sprites/ "[...]the computer could fetch a graphic into memory, and then only display parts of that image at a time, which was faster than having to continually fetch new images"
upvoted 2 times
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SirMarv
5 years, 1 month ago
70-486 the answer is B, interesting to see the same question this side, but with a different answer
upvoted 4 times
hungry_ape9000
5 years, 1 month ago
We don't do sprite sheets anymore, Azure recommends hosting CDNs for all static files.
upvoted 1 times
BedeKacper
4 years, 7 months ago
But exam is not about what is now
upvoted 2 times
TimboJones
4 years, 7 months ago
Pretty sure the exam is about what to use now and not using "outdated" tech.
upvoted 1 times
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Nunu95
5 years, 4 months ago
C is the correct answer.
upvoted 2 times
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basha
5 years, 4 months ago
it should be B
upvoted 2 times
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Kayes
5 years, 6 months ago
Both B and C are answers here. This is a stupid question. A lot of variables are not defined. Also, you don't need 3rd party tool to create sprite, just an image that combines all images and css.
upvoted 5 times
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cristopherpereiramoreira
5 years, 9 months ago
Should be C beacuse we cannot create sprites with CSS isntead we have to use a 3th party tool
upvoted 4 times
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Community vote distribution
A (35%)
C (25%)
B (20%)
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