You are developing an application that uses many small images. When the images load, the application runs slowly. You need to improve the performance of the application. What should you do?
A.
Preload all the images when the application starts to ensure that the images are cached.
B.
Convert the images to ICO file format and stream all images on a single connection.
C.
Host all images on a Microsoft Azure web role with multiple instances.
D.
Combine all the images into a single image and use CSS to create sprites.
Suggested Answer:D🗳️
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
FINAL ANSWER: D is correct
But also, where is the option to host it in a CDN like the previous question a few pages back? Seems like hosting it in a CDN or in a spritesheet or both viable solutions.
I would say that the fact there are two versions of that question where in one CDN answer is missing seems to confirm that CDN answer is simply wrong and the only correct answer is combining into single sprite. Note that if the answer with sprites would be wrong then there has to be another correct answer from remaining three in this question. I doubt there is one so I would go for D in both versions of the question. Just an opinion, I may be wrong.
I mean I would go for "sprite answer" in both questions - not D in both because it may differ of course ;-).
upvoted 2 times
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