MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Database knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
IF_YOU_WERE_COLLECTING_AND_STORING_INFORMATION_ABOUT_YOUR_MUSIC_COLLECTION,_AN_ALBUM_WOULD_BE_CONSIDERED_A(N)______?$ |
| A. | Relation |
| B. | Entity |
| C. | Instance |
| D. | Attribute |
| Answer» C. Instance | |
| 2. |
What_term_is_used_to_refer_to_a_specific_record_in_your_music_database;_for_instance;_information_stored_about_a_specific_album?$ |
| A. | Relation |
| B. | Instance |
| C. | Table |
| D. | Column |
| Answer» C. Table | |
| 3. |
Weak entity set is represented a? |
| A. | Underline |
| B. | Double line |
| C. | Double diamond |
| D. | Double rectangle |
| Answer» D. Double rectangle | |
| 4. |
For a weak entity set to be meaningful, it must be associated with another entity set, called the |
| A. | Identifying set |
| B. | Owner set |
| C. | Neighbour set |
| D. | Strong entity set |
| Answer» B. Owner set | |
| 5. |
An entity set that does not have sufficient attributes to form a primary key is termed a __________ |
| A. | Strong entity set |
| B. | Variant set |
| C. | Weak entity set |
| D. | Variable set |
| Answer» D. Variable set | |
| 6. |
We indicate roles in E-R diagrams by labeling the lines that connect ___________ to __________ |
| A. | Diamond , diamond |
| B. | Rectangle, diamond |
| C. | Rectangle, rectangle |
| D. | Diamond, rectangle |
| Answer» E. | |
| 7. |
Consider a directed line(->) from the relationship set advisor to both entity sets instructor and student. This indicates _________ cardinality |
| A. | One to many |
| B. | One to one |
| C. | Many to many |
| D. | Many to one |
| Answer» C. Many to many | |
| 8. |
The Rectangles divided into two parts represents |
| A. | Entity set |
| B. | Relationship set |
| C. | Attributes of a relationship set |
| D. | Primary key |
| Answer» B. Relationship set | |