Question 11 :
An extent is a contiguous section of disk storage space.
Question 12 :
The three newest database architectures in use today are relational, multidimensional and hierarchical.
Question 13 :
Data-volume and frequency-of-use statistics are not critical inputs to the physical database design process.
Question 14 :
In general, larger block sizes are used for online transaction processing applications and smaller block sizes are used for databases with a decision support or data warehousing system.
Question 15 :
It is usually not very important to design the physical database to minimize the time required by users to interact with the information systems.