EAGLERUN TRUCKING DISPATCHER
Observe the ER diagram for the Eaglerun Trucking
Dispatcher:

This ER diagram will be used for the following questions citing Eaglerun Trucking Dispatcher ER Diagram.

-How many tables in the relational schema mapped from the Eaglerun Trucking Dispatcher ER diagram will have composite primary keys?
A)0
B)1
C)2

Question

EAGLERUN TRUCKING DISPATCHER
Observe the ER diagram for the Eaglerun Trucking
 Dispatcher:

This ER diagram will be used for the following questions citing Eaglerun Trucking Dispatcher ER Diagram.

-How many tables in the relational schema mapped from the Eaglerun Trucking Dispatcher ER diagram will have composite primary keys?
A)0 
B)1 
C)2

Quizplus · Accepted Answer

Only the "Dispatched Routes" table has a composite primary key, which consists of the combination of the Route ID and Truck ID. The other tables have a single attribute primary key.

EAGLERUN TRUCKING DISPATCHER Observe the ER Diagram for the Eaglerun Trucking