Physical Database Design A secondary key is which of the following? Useful for denormalization decisions Nonunique key Primary key Determines the tablespace required Useful for denormalization decisions Nonunique key Primary key Determines the tablespace required ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Which of the following is not a factor to consider when switching from small to large block size? Random row access speed The number of columns Block contention The length of all of the fields in a table row Random row access speed The number of columns Block contention The length of all of the fields in a table row ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Some advantages of partitioning include: efficiency, security, and load balancing. False True False True ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design The blocking factor is: 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. the number of physical records per page. attributes grouped together by the same primary key. attributes grouped together by the same secondary key. ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design The primary goal of physical database design is data processing efficiency. True False True False ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design A multidimensional database model is used most often in which of the following models? Network Relational Data warehouse Hierarchical Network Relational Data warehouse Hierarchical ANSWER DOWNLOAD EXAMIANS APP
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