Physical Database Design It is usually not very important to design the physical database to minimize the time required by users to interact with the information systems. True False True False 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 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. All fields are stored in two relations. ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design A secondary key is which of the following? Primary key Determines the tablespace required Nonunique key Useful for denormalization decisions Primary key Determines the tablespace required Nonunique key Useful for denormalization decisions ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design The fastest read/write time and most efficient data storage of any disk array type is: RAID-1 RAID-2 RAID-3 RAID-0 RAID-1 RAID-2 RAID-3 RAID-0 ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design What is the best data type definition for Oracle when a field is alphanumeric and has a fixed length? NUMBER LONG CHAR VARCHAR2 NUMBER LONG CHAR VARCHAR2 ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Selecting a data type involves which of the following? Improve data integrity All of these Represent most values Maximize storage space Improve data integrity All of these Represent most values Maximize storage space ANSWER DOWNLOAD EXAMIANS APP
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