Physical Database Design Sequential retrieval on a primary key for sequential file storage has which of the following features? Moderately fast Very fast Slow Impractical Moderately fast Very fast Slow Impractical ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design An extent is a contiguous section of disk storage space. False True False True ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design What is the best data type definition for Oracle when a field is alphanumeric and has a length that can vary? CHAR NUMBER LONG VARCHAR2 CHAR NUMBER LONG VARCHAR2 ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design The fastest read/write time and most efficient data storage of any disk array type is: RAID-0 RAID-3 RAID-1 RAID-2 RAID-0 RAID-3 RAID-1 RAID-2 ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design In general, larger block sizes are used for online transaction processing applications and smaller block sizes are used for databases with a decision support or data warehousing system. False True False True 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 Block contention The length of all of the fields in a table row The number of columns Random row access speed Block contention The length of all of the fields in a table row The number of columns ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS