Discussion
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- Question
Which of the following is an ordered collection of elements of the same type?
Options- A. Set
- B. Bag
- C. List
- D. Dictionary
- Correct Answer
- List
- 1. A relationship should be specified how in the ODL?
Options- A. One direction starting with the first class
- B. One direction starting with the second class
- C. Neither direction.
- D. Both directions. Discuss
- 2. Which of the following is an unordered collection of elements that may contain duplicates?
Options- A. Set
- B. Bag
- C. List
- D. Dictionary Discuss
- 3. The reserved word enum is used for which of the following?
Options- A. To define a range for an attribute.
- B. To define a range for a class.
- C. To define a range for a relationship.
- D. All of the above. Discuss
- 4. The keyword "inverse" is used in which of the following?
Options- A. Class
- B. Attribute
- C. Relationship
- D. All of the above. Discuss
- 5. A distributed database can use which of the following strategies?
Options- A. Totally centralized at one location and accessed by many sites
- B. Partially or totally replicated across sites
- C. Partitioned into segments at different sites
- D. All of the above Discuss
- 6. Using OQL, you may do which of the following?
Options- A. Return an entire collection of elements including duplicates.
- B. Return a collection of elements without duplicates.
- C. Return a specific subset of elements using a given criteria.
- D. All of the above. Discuss
- 7. The Object Query Language is which of the following"?
Options- A. Similar to SQL and uses a select-from-where structure
- B. Similar to SQL and uses a select-where structure
- C. Similar to SQL and uses a from-where structure
- D. Not similar to SQL Discuss
- 8. An atomic literal is which of the following?
Options- A. Strings
- B. Boolean
- C. Long
- D. All of the above. Discuss
- 9. The object definition language (ODL) is which of the following?
Options- A. Used to develop logical schemas
- B. A data definition language for OODB
- C. A method to implement a logical schema
- D. All of the above. Discuss
- 10. Identify the class name for the following code: ABC123 course();
Options- A. ABC123
- B. course
- C. course()
- D. All of the above. Discuss
Object-Oriented Database problems
Search Results
Correct Answer: Both directions.
Correct Answer: Bag
Correct Answer: To define a range for an attribute.
Correct Answer: Relationship
Correct Answer: All of the above
Correct Answer: All of the above.
Correct Answer: Similar to SQL and uses a select-from-where structure
Correct Answer: All of the above.
Correct Answer: All of the above.
Correct Answer: ABC123
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