Physical Database Design The fastest read/write time and most efficient data storage of any disk array type is: RAID-3 RAID-0 RAID-1 RAID-2 RAID-3 RAID-0 RAID-1 RAID-2 ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Which of the following are integrity controls that a DBMS may support? 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 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. ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design The blocking factor is: the number of physical records per page. attributes grouped together by the same primary key. attributes grouped together by the same secondary key. a group of fields stored in adjacent memory. the number of physical records per page. attributes grouped together by the same primary key. attributes grouped together by the same secondary key. a group of fields stored in adjacent memory. ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Distributing the columns of a table into several separate physical records is known as horizontal partitioning. True False True False ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Sequential retrieval on a primary key for sequential file storage has which of the following features? Slow Very fast Impractical Moderately fast Slow Very fast Impractical Moderately fast 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 two relations. All fields are stored in one relation. All fields are stored in four relations. All fields are stored in three relations. All fields are stored in two relations. All fields are stored in one relation. All fields are stored in four relations. All fields are stored in three relations. ANSWER DOWNLOAD EXAMIANS APP
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