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Identify a statement that describes reliability of open-source software. O a. Open-source software is applicable only on a cheap hardware. b. Open-source software is applicable only on a supercomputer. O c. Number of bugs in an open-source software will be generally less. O d. Number of bugs in an open-source software will be generally high. Khimji's Oman LLC is into 50 types of different businesses. They have 800 different small data marts. Due to the analysis needs now they are trying to build a single data warehouse by combining these 800 data marts. The data warehouse design approach discussed in the scenario is O a. Top-Down approach O b. Warehousing approach O c. Data mart approach d. Bottom-Up approach Vodafone is a telecom company in Oman. They created a large data warehouse and then started creating smaller data marts for marketing, sales, and finance. This method of data warehouse design is known as_ a. Bottom-Up approach b. Warehousing approach O c. Top-Down approach d. Data mart approach