Q. What are some major components of the physical model in a data warehouse?

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Q. Why are standards for naming objects in a data warehouse environment significant?

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Q. How does the naming convention contribute to effective communication in a data warehouse project?

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Q. Why is it important to have consistent object names in both logical and physical models?

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Q. What is the primary purpose of adopting effective standards for naming data structures in the staging area of a data warehouse?

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Q. What should be indicated in the name of a file in the staging area to provide clarity about its purpose?

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Q. In the staging area, what does expressing the purpose in the file name help with?

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Q. What types of files should have naming conventions as part of the standards in the data warehouse environment?

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Q. What is the fundamental unit of input/output transfer from the database to memory in a file?

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Q. Why does increasing the block size in a file have the advantage of decreasing the number of reads?

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Q. What is the downside of larger block sizes in terms of memory management?

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Q. In data warehouse tables, what aspect could cause concern regarding block size and record size?

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Q. What is the impact of larger block sizes on the space utilization by block headers?

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Q. What is the purpose of the "Block Percent Free" parameter in a DBMS?

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Q. In the context of data warehouses, why is setting the "Block Percent Free" parameter to a high value not recommended?

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Q. What does the "Block Percent Used" parameter in a DBMS determine?

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Q. Why is migration less of a concern in data warehouses compared to other systems?

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Q. How can block underutilization be managed in terms of the "Block Percent Free" and "Block Percent Used" parameters?

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Q. What does RAID stand for in the context of data storage?

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Q. What is the purpose of disk mirroring in RAID?

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