“…In addition, this paper formulates a fault tolerance problem and presents four different algorithms to handle server, client, client-server and connection failures. The complexity of the proposed algorithms is also same as (Bharati, Naidu, Kiran, Khune, & Vyas, 2014;Panda, Mishra, & Das, 2017). However, the proposed algorithms consider various failures which are not considered in (Nishida, & Nguyen, 2013;Bharati, Naidu, Kiran, Khune, & Vyas, 2014;Panda, Mishra, & Das, 2017).…”