070-489 Latest Exam Braindumps
Question 12: 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 100 MB.
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: A,B
Explanation:
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 Image 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. Image Rendition enables you to have large files stored
within your website along with smaller scaled variations for mobile users. When using Image
Rendition you will have to enable BLOBCache to improve performance
From 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.
