Database - Object - Oriented Database
Database - Object - Oriented Database
1. ODL supports which of the following types of association relationships?
- Unary
- Unary and Binary
- Unary and Binary and Ternary
- Unary and Binary and Ternary and higher
2. An extent is which of the following?
- A keyword that indicates that the subclass inherits from a superclass
- A keyword that indicates that the superclass inherits from a subclass
- The set of all instances of a class within a database
- Only one instance of a class within a database
3. Identify the class name for the following code: ABC123 course();
- ABC123
- course
- course()
- All of the above.
4. Using ODL, you can define which of the following?
- Attribute
- Structure
- Operation
- All of the above.
5. The keyword "inverse" is used in which of the following?
- Class
- Attribute
- Relationship
- All of the above.
6. The object definition language (ODL) is which of the following?
- Used to develop logical schemas
- A data definition language for OODB
- A method to implement a logical schema
- All of the above.
8. Which of the following is true concerning an ODBMS?
- They have the ability to store complex data types on the Web.
- They are overtaking RDBMS for all applications.
- They are most useful for traditional, two-dimensional database table applications.
- All of the above.
9. The reserved word enum is used for which of the following?
- To define a range for an attribute.
- To define a range for a class.
- To define a range for a relationship.
- All of the above.
10. Which of the following is an unordered collection of elements that may contain duplicates?
- Set
- Bag
- List
- Dictionary