ZONG Telecom is involved in mobile wireless services across the Pakistan and has about 6000 employees worldwide. This company is Chinese based and has 7 regional offices across the country. Although ZONG is doing well financially, they continue to feel competitive pressure. As a result, the company needs to ensure that the IT infrastructure takes advantage of fault tolerant features. ZONG uses a number of different applications for communication, accounting, transactions and management. All the applications were hosted on individual servers with disks configured as RAID 0. Consider the given example and answer the following questions. Which fault tolerance mechanism will you choose in this scenario and provide reasoning for selection ? *