Physical Database Design An extent is a contiguous section of disk storage space. False True False True ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Selecting a data type involves which of the following? Maximize storage space All of these Improve data integrity Represent most values Maximize storage space All of these Improve data integrity Represent most values 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 three relations. All fields are stored in one relation. All fields are stored in four relations. All fields are stored in two relations. All fields are stored in three relations. All fields are stored in one relation. All fields are stored in four relations. 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 Data-volume and frequency-of-use statistics are not critical inputs to the physical database design process. False True False True ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design A secondary key is which of the following? Determines the tablespace required Nonunique key Useful for denormalization decisions Primary key Determines the tablespace required Nonunique key Useful for denormalization decisions Primary key ANSWER DOWNLOAD EXAMIANS APP
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