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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

Q. How does RAID 5 provide fault tolerance?

View solution

Q. In RAID technology, what does disk striping involve?

View solution

Q. What is the advantage of RAID technology?

View solution

Q. In a query-centric system like a data warehouse, what dominates the need to process queries faster?

View solution

Q. What is one of the most effective methods for improving performance in a data warehouse?

View solution

Q. Why can you create a number of indexes for each table in a data warehouse?

View solution

Q. What should be considered when determining the maximum number of indexes per table in a data warehouse?

View solution

Q. Why does the loading of data into a data warehouse slow down when there are a large number of indexes?

View solution

Q. What is the default indexing method in most database management systems?

View solution

Q. Why is the B-Tree index technique considered superior to other indexing techniques?

View solution