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You have a SharePoint Server 2010 Service Pack 1 (SP1) server farm. The farm contains a publishing site collection. You have a page that contains a Content Query Web Part. The Content Query Web Part displays all items that use the task content type in the site collection. Users report that when they add new task items to the site collection, the tasks take up to one minute to appear in the Content Query Web Part. You need to reduce the amount of time it takes for the new tasks to appear in the Content Query Web Part. What should you do?
A. Edit the list view threshold.
B. Edit the site collection object cache.
C. Activate the BLOB cache.
D. Activate the site collection output cache
Correct Answer: B
Explanation/Reference:
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.
You can optimize the object cache for a site collection by specifying several settings:
The size of the object cache.
http://office.microsoft.com/en-us/sharepoint-server-help/configure-object-cache-settings-HA010157783.aspx
http://msdn.microsoft.com/en-us/library/aa622758.aspx
