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You need to resolve the image loading issue.
What should you do?
(Each correct answer presents a part of the solution. Choose all that apply)
A. Set the size of the site collection object cache to at least 100MB.
B. Enable the binary large object (BLOB) cache on each front-end web server.
C. Activate the Content Organizer site feature.
D. Enable authenticated cache profiles for the site output cache.
E. Enable publishing features for the site collection.
F. Set the default device channel to the active channel
Correct Answer: ABE
Explanation/Reference:
Image Renditions are one of the new capabilities of the SharePoint 2013 platform that can help you improve the user experience of your website by optimizing images. Using Image Renditions you can have original (large) images stored in your website and then define a number of scaled variants to be used throughout the website.
To minimize the performance impact caused by dynamically rendering images, the Image Renditions capability depends on the BLOB cache which caches generated renditions. For this mechanism to work properly, you have to enable the BLOB cache for your Web Application in web.config.
For image renditions to work you need to have three things done:
A publishing site collection (or at least the publishing features enabled)
A configured BLOB cache
An Asset Library (recommended)
A: The object cache is used internally to optimize page rendering by storing properties of sites, page layouts, and pages The object cache reduces the amount of traffic between the Web server and a SQL database. This results in higher throughput of rendered pages, thereby increasing the number of pages that can be delivered to clients.
B: SharePoint Server 2013 provides a disk-based cache that stores files that are used by web pages to help them load quickly in the browser, and reduces the load on the database server when it uses those files. These files are known as binary large objects (BLOBs), and the cache is known as the BLOB cache. The BLOB cache is stored directly on the hard disk drive of a front-end web server computer
When using lmage Rendition you will have to enable BLOBCache to improve performance
By using Device Channel Renditions you can create smaller image sizes designed specifically for mobile use. This allows the mobile user to browse the smaller version, increasing the overall performance for the device they are using lmage Rendition enables you to have large files stored within your website along with smaller scaled variations for mobile users.
When using lmage Rendition you will have to enable BLOBCache to improve performance
http://blog.mastykarz.nl/image-renditions-sharepoint-2013/
http://sharepoint.stackexchange.com/questions/72802/2013-image-renditions-no-edit-rendition-option
Scenario:
Some employees report that the home page loads slowly. You investigate the issue and find out that the size of some images is very large. You must enable image renditions on the intranet site collection.
