Physical Database Design Hashing algorithm converts a primary key value into a record address. True False True False ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design The three newest database architectures in use today are relational, multidimensional and hierarchical. False True False True ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design The blocking factor is: a group of fields stored in adjacent memory. the number of physical records per page. attributes grouped together by the same secondary key. attributes grouped together by the same primary key. a group of fields stored in adjacent memory. the number of physical records per page. attributes grouped together by the same secondary key. attributes grouped together by the same primary key. ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Denormalization and clustering can work well to minimize data access time for small records. False True False True ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design The fastest read/write time and most efficient data storage of any disk array type is: RAID-0 RAID-1 RAID-2 RAID-3 RAID-0 RAID-1 RAID-2 RAID-3 ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design A rule of thumb for choosing indexes for a relational database includes which of the following? Indexes are more useful on smaller tables. Do not specify a unique index for the primary key of each table. Be careful indexing attributes that have null values. Indexes are more useful for columns that do not appear frequently in the WHERE clause in queries. Indexes are more useful on smaller tables. Do not specify a unique index for the primary key of each table. Be careful indexing attributes that have null values. Indexes are more useful for columns that do not appear frequently in the WHERE clause in queries. ANSWER DOWNLOAD EXAMIANS APP
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