Introduction to Database System A race condition occurs when Two concurrent activities interact to cause a processing error two users of the DBMS are interacting with different files at the same time Both of the listed here None of the listed here Two concurrent activities interact to cause a processing error two users of the DBMS are interacting with different files at the same time Both of the listed here None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a database, data is stored in spreadsheets which have rows and columns. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The activity of a file is a measure of the percentage of existing records updated during a run refers to how closely the files fits into the allocated None of these is a low percentages of number of records added or deleted from a file if high, reduces processing efficiency for sequential and nonsequential files is a measure of the percentage of existing records updated during a run refers to how closely the files fits into the allocated None of these is a low percentages of number of records added or deleted from a file if high, reduces processing efficiency for sequential and nonsequential files ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following hardware components is the most important to the operation of a database management system? high-resolution video display plotter printer high speed, large-capacity disk high-resolution video display plotter printer high speed, large-capacity disk ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which command is used to remove an index from the database in SQL? DELETE INDEX REMOVE INDEX ROLL BACK INDEX DROP INDEX DELETE INDEX REMOVE INDEX ROLL BACK INDEX DROP INDEX ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The relational model uses some unfamiliar terminology. A tuple is equivalent to a field data item record data base field data item record data base ANSWER DOWNLOAD EXAMIANS APP
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