MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Rdbms knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
State true or false: A weak entity can participate in all the relationships. |
| A. | tTrue |
| B. | tFalse |
| Answer» C. | |
| 2. |
State true or false: Every weak entity set must be associated with an identifying entity |
| A. | tTrue |
| B. | tFalse |
| Answer» B. tFalse | |
| 3. |
What does a directed line ( ) from a relationship set to two entity sets mean? |
| A. | tOne-one |
| B. | tMany-one |
| C. | tMany-many |
| D. | tOne-many |
| Answer» B. tMany-one | |
| 4. |
What do double diamonds represent in an ER diagram |
| A. | tThey link entity sets to relationship sets |
| B. | tTotal participation of an entity in a relationship set |
| C. | tRelationship sets linked to weak entity sets |
| D. | tNone of the mentioned |
| Answer» D. tNone of the mentioned | |
| 5. |
Which of the following symbols represent relationship sets in an ER diagram |
| A. | tDivided rectangles |
| B. | tDiamonds |
| C. | tLines |
| D. | tUndivided rectangles |
| Answer» C. tLines | |
| 6. |
Which of the following symbols represent entity sets in an ER diagram? |
| A. | tDivided rectangles |
| B. | tDiamonds |
| C. | tLines |
| D. | tUndivided rectangles |
| Answer» B. tDiamonds | |