Question
ASAAP! 1. Data flow diagrams: More than one choice above is correct Are same from system flowcharts since they focus on a logical view of
ASAAP!
1.
Data flow diagrams:
| More than one choice above is correct | ||
| Are same from system flowcharts since they focus on a logical view of the information system | ||
| Are never used in analyzing an existing system | ||
| Accomplish the similar purpose as system flowcharts | ||
| Are useless for planning a new system
2.
| ||
| None of the above | ||
| Phone number | ||
| Social Security number | ||
| Last name | ||
| License plate number |
3.
Which of the following statements about foreign keys is not true?
| Foreign key must match values of the linked primary key | ||
| A foreign key can be a combination of attributes | ||
| More than one choice above is correct. | ||
| foreign key cannot be blank | ||
| Foreign keys support a defined association |
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