Difference between CacheItem priority NotRemovable and absoluteExpiration

var a = System.Runtime.Caching.ObjectCache.InfiniteAbsoluteExpiration; MemoryCache cache = new MemoryCache(“memory cache”); CacheItem item = new CacheItem(“key”, “value”); CacheItemPolicy policy = new CacheItemPolicy { AbsoluteExpiration = DateTimeOffset.Now.AddSeconds(5), Priority = CacheItemPriority.NotRemovable }; cache.Add(item, policy); System.Threading.Thread.Sleep(1000 * 10); object ba = cache.Get(“key”);   Cache item priority defines just // The cache items with this priority level will not be … Read moreDifference between CacheItem priority NotRemovable and absoluteExpiration