What is the default cache-control?
The default cache-control header is : Private. A cache mechanism may cache this page in a private cache and resend it only to a single client. This is the default value. Most proxy servers will not cache pages with this setting.
What is the difference between no cache and no-store?
As far as I know, no-store means that no cache device is allowed to cache that response. In the other hand, no-cache means that no cache device is allowed to serve a cached response without validate it first with the source.
How does the expiration date work in a cache?
Some caches enable you to specify the expiration period as an absolute value, or as a sliding value that causes the item to be removed from the cache if it is not accessed within the specified time. This setting overrides any cache-wide expiration policy, but only for the specified objects.
When does sliding expiration occur in cacheitem?
Sliding expiration expires the cacheitem if it has not been accessed within the timespan provided. This makes it easy to keep highly used items in cache. However be careful if you expect something to be refreshed at some point. Items that are used too often may never get expired – and therefore never refreshed.
How is data cached in a distributed application?
Distributed applications typically implement either or both of the following strategies when caching data: Using a private cache, where data is held locally on the computer that’s running an instance of an application or service. Using a shared cache, serving as a common source that can be accessed by multiple processes and machines.
When to write cached data to local file system?
If you need to cache more information than is physically possible in memory, you can write cached data to the local file system. This will be slower to access than data held in memory, but should still be faster and more reliable than retrieving data across a network.