Gce Model Questions Vol1 2017 Computer Studies Question 5

A small retail business is considering moving its data storage and processing to a cloud‑based service. The owner has obtained the following information: - The cloud provider charges a monthly fee of ₦12,000 for 500 GB of storage and a compute package of 2 CPU cores at 4 GHz each, with a data transfer allowance of 200 GB per month. Any additional storage costs ₦30 per GB per month and any extra data transfer costs ₦0.25 per GB. - The business currently uses an on‑premises server that required an initial purchase cost of ₦1,200,000 and an annual maintenance contract of ₦180,000. The server has a storage capacity of 1 TB and provides the required processing power. - The electricity cost for running the on‑premises server is estimated at ₦45,000 per year. - The owner is concerned about data security and wants to ensure regular backups. Using the information above, answer the following: (a) Calculate the total annual cost of using the cloud service if the business expects to use 750 GB of storage and 350 GB of data transfer each month. (b) Calculate the total annual cost of retaining the on‑premises server, including depreciation of the initial purchase over five years (use straight‑line depreciation), maintenance, and electricity. (c) Based on your calculations in (a) and (b), discuss which option is more cost‑effective for the first three years and outline two security measures the business should implement for the chosen option.