Physical Database Design A multidimensional database model is used most often in which of the following models? Relational Network Data warehouse Hierarchical Relational Network Data warehouse Hierarchical ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Selecting a data type involves which of the following? All of these Improve data integrity Represent most values Maximize storage space All of these Improve data integrity Represent most values Maximize storage space ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design A rule of thumb for choosing indexes for a relational database includes which of the following? 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. Indexes are more useful on smaller tables. ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design If a denormalization situation exists with a many-to-many or associative binary relationship, which of the following is true? 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. All fields are stored in two relations. All fields are stored in one relation. ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design The fastest read/write time and most efficient data storage of any disk array type is: RAID-2 RAID-3 RAID-0 RAID-1 RAID-2 RAID-3 RAID-0 RAID-1 ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Which of the following is an advantage of partitioning? Inconsistent access speed Security Complexity Extra space Inconsistent access speed Security Complexity Extra space ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS