CS403 Quiz No.1 Shared by Humna (Solved)

Which of the following method is used to determine the cardinality of the system?
Select correct option:

Data about data is metadata
Select correct option:
true

Which of the following is correct regarding Dataflow diagram?
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Used to represent the relationships among the external entities

Which of the following constraints enforces entity integrity?
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Candidate keys which are not selected as primary key are called_____
Select correct option:
secondry key

Each table must have a ____ key.
Select correct option:
primery key

Within a table, each primary key value ____.
have a unique value

Which tool is used to identify relationship between entities?
Select correct option:
ERD