MIS 380 Quiz #3 Question and answers rated A+ 2025/2026

MIS 380 Quiz #3 Question and
answers rated A+ 2025/2026
In the relational model, a table is called - correct answer ✔a relation



In the relational model, a field is called - correct answer ✔an attribute



In the relational model a record is called - correct answer ✔tuple



IN standard relational notation, a comma-separated list of name identifies - correct answer ✔the
attributes



If a data value is null, then it - correct answer ✔may not apply



An internally generated value that is unique to a row in a table is called - correct answer ✔an object
identifier



a unique row identifier that has meaning in the world outside the computer system is called - correct
answer ✔an external key



a foreign key that references its own table is called - correct answer ✔recursive



in the relational model, a possible unique row identifier is called - correct answer ✔candidate key



the rule that says no key column value may be null is called - correct answer ✔entity integrity