Explain The Distinction Between A Type X And A Reference Type Ref(x). Under What Circumstances Would You Choose To Use A Reference Type?

Consider A System That Provides Persistent Objects. Is Such A System Necessarily A Database System?

If An Object Is Created Without Any References To It, How Can That Object Be Deleted?

Explain How A Persistent Pointer Is Implemented. Contrast This Implementation With That Of Pointers As They Exist In General-purpose Languages, Such As C Or Pascal?

Why Do Persistent Programming Languages Allow Transient Objects? Might It Be Simpler To Use Only Persistent Objects, With Unneeded Objects Deleted At The End Of An Execution?

Explain The Distinction In Meaning Between Edges In A Dag Representing Inheritance And A Dag Representing Object Containment?

Explain How The Concept Of Object Identity In The Object-oriented Model Differs From The Concept Of Tuple Equality In The Relational Model?

Explain Why Ambiguity Potentially Exists With Multiple Inheritance?

How Does The Concept Of An Object In The Object-oriented Model Differ From The Concept Of An Entity In The Entity-relationship Model?

For Each Of The Following Application Areas, Explain Why A Relational Database System Would Be Inadequate. List All Specific System Components That Would Need To Be Modified?

1. computer-aided Design
2. multimedia Databases