PLEASE ANSWER ALL THE QUESTION!!! Question 24 2 pts Given the ERD below, what wi

Question

PLEASE ANSWER ALL THE QUESTION!!!

Question 24 2 pts Given the ERD below, what will be the constraints on the foreign key column(s? CUSTOMER METER READING Belongs To MeterID Customer ID FirstName Date Reading Has LastName O The foreign key column will require unique values and a value is required for every now O The foreign key column will require unique values but a value is NOT required for every row. The foreign key column will NOT require unique values and a value is NOT required for every row Correct? O The foreign key column will NOT require unique values but a value is requiredd for every row.

Explanation / Answer

Question 24:

Option c is correct, Because multiple meter readings are allowed and with the help of foreign key constraint the condition will be satisfied.

Question 25:

c option is correct here, Because a person may have two father's at most, option c is the only statement in the options which will hold this condition, because in the Father_Paternity table two same IDs can appear of a father, (He may be a biological father of someone), So combining the two entities of the table will create primary key which will differentiate between them.

Question 27:

The option which you are asking is absolutely correct, shipID is the foreign key in the Sailor table and one shipID can be associated with multiple sailors.

Last one, The option which you are asking is also correct, because foreign key constraint productSomponent is defined.

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