Acquiring the snapshot of a distributed system helps gathering system related global state. In wireless sensor networks (WSNs). global state shows if a node is terminated or deadlock occurs along with many other situations which prevents a WSN from fully functioning. In this paper. https://echobookmarks.com/story19493275/minimal-residual-disease-mrd-detection-in-solid-tumors-using-circulating-tumor-dna-a-systematic-review