Physical Database Design Some advantages of partitioning include: efficiency, security, and load balancing. True False True False ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Which of the following are integrity controls that a DBMS may support? 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. All of these Assume a default value in a field unless a user enters a value for that field. 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. Indexes are more useful for columns that do not appear frequently in the WHERE clause in queries. 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 on smaller tables. Indexes are more useful for columns that do not appear frequently in the WHERE clause in queries. Do not specify a unique index for the primary key of each table. Be careful indexing attributes that have null values. ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design A pointer is a detailed coding scheme recognized by system software for representing organizational data. False True False True ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design When storage space is scarce and physical records cannot span pages, creating multiple physical records from one logical relation will minimize wasted storage space. True False True False 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-3 RAID-2 RAID-0 RAID-1 RAID-3 RAID-2 RAID-0 ANSWER DOWNLOAD EXAMIANS APP
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