.NET and ASP.NET interview question – what is the difference between Cache and Application?


Application and Cache both help to share global data and cache data
across the users.but cache object is proactive and you can define dependency.In application object you can’t define depenency.

Below is the code for declaring application and cache object.

CacheDependency objCacheDependency = new CacheDependency(Server.MapPath("Banner.txt"));
Cache.Insert("Banner", strBanner, objCacheDependency); Application["Banner"] = "strBanner";

In the above code, for Cache object you can define dependency but in Application object you can’t define dependency.when the banner file is changed the Cache object can be refreshed but the application remain static and holds the old text of banner file.

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