Physical Database Design The fastest read/write time and most efficient data storage of any disk array type is: RAID-0 RAID-1 RAID-3 RAID-2 RAID-0 RAID-1 RAID-3 RAID-2 ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design 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. True False True False ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Data-volume and frequency-of-use statistics are not critical inputs to the physical database design process. True False True False ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Which of the following are integrity controls that a DBMS may support? Assume a default value in a field unless a user enters a value for that field. Limit the set of permissible values that a field may assume. Limit the use of null values in some fields. All of these Assume a default value in a field unless a user enters a value for that field. Limit the set of permissible values that a field may assume. Limit the use of null values in some fields. All of these ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design If a denormalization situation exists with a one-to-one binary relationship, which of the following is true? All fields are stored in two relations. All fields are stored in one relation. All fields are stored in three relations. All fields are stored in four relations. All fields are stored in two relations. All fields are stored in one relation. All fields are stored in three relations. All fields are stored in four relations. ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Which of the following improves a query's processing time? Write complex queries. Combine a table with itself. Use compatible data types. Query one query within another. Write complex queries. Combine a table with itself. Use compatible data types. Query one query within another. ANSWER DOWNLOAD EXAMIANS APP
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