Physical Database Design The fastest read/write time and most efficient data storage of any disk array type is: RAID-3 RAID-0 RAID-2 RAID-1 RAID-3 RAID-0 RAID-2 RAID-1 ANSWER DOWNLOAD EXAMIANS APP
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. 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 fixed length? VARCHAR2 CHAR NUMBER LONG VARCHAR2 CHAR NUMBER LONG 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 Denormalization and clustering can work well to minimize data access time for small records. 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? 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 Random row access speed Block contention ANSWER DOWNLOAD EXAMIANS APP
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