Options: (A)The probability that the system will cause an accident (B) Extent to which a system or component can function correctly in the presence of invalid inputs or stressful environment conditions. (C) The frequency of occurrence with which unexpected behavior is likely to occur (D) None of these 23
Options: (A)Large collection of data mostly stored in a computer system (B) The removal of noise errors and incorrect input from a database (C) The systematic description of the syntactic structure of a specific database. It describes the structure of the attributes the tables and foreign key relationships. (D) None of these 2
Which of the following is requirement to develop a successful management information system?
Options: a staff of technical specialists with the skills necessary to develop the computer based parts of the system, the development of a short-range goal for the system, the development of a long-range goal for the system, a commitment from management to allocate the personnel and resources necessary to get the job done
. What happens if you mark on Hidden check box of Font dialog box after you select some text?
Options: a. The text is deleted from document and you need to bring from Recycle Bin if required again. b. The text is hidden and you need to bring it by removing the check box if needed again c. The text is deleted and cannot be returned back d. The text is hidden and cannot be returned back
Options: a. Foreign key fields don't allow duplicate values
b. In primary key field you can enter duplicate value
c. In an indexed field you may or may not enter duplicate value depending upon setting
d. All statements are true
Which of the following is not true about modifying table columns?
Options: You can drop a column at any time., You can add a column at any time as long as it is a NULL column., You can increase the number of characters in character columns or the number of digits in numeric columns, You cannot increase or decrease the number of decimal places.