Software Programming : Database Management QUESTIONS AND ANSWERS :: part5 : 1 to 5
Following Software Programming language Entrance Multiple choice objective type questions and answers will help you in Software Programming 2024 examinations :
1.Which of the following is correct? |
| Function dependencies are not associated with relations; they are based on the semantics of information that we are dealing with |
| If a relation has no redundant information its attributes must not have any function dependencies |
| Functional dependencies may be determined if we are given several instances of a relation |
| The FDs that hold for attributes of a relation need not be satisfied at all times |
| BCNF is a fourth normal form. |
2.In the context of a database table, the statement "A determines B" indicates that |
| Knowing the value of attribute A you can not look up the value of attribute B |
| You do not need to know the value of attribute A in order to look up the value of attribute B |
| Knowing the value of attribute B you can look up the value of attribute A |
| Knowing the value of attribute A you can look up the value of attribute B |
| None of the above. |
3.Which of the following is not correct? #62.Which of the following is not correct? |
| Each entity must include some descriptive information |
| If an object only requires an identifier, it should be classified as an attribute |
| Each multivalued attribute should be classified as an entity even if it does not have any descriptive information |
| The procedure of identifying entities and attaching attributes always leads to a unique solution |
| Every entity is a collection of attributes. |
4.Which of the following is a classical approach to database design? |
| Top-down approach |
| Left-side approach |
| Right-side approach |
| Backwards approach |
| Middleware. |
5.A ________ attribute is an attribute that can be further subdivided to yield additional attributes. |
| Composite |
| Simple |
| Single-valued |
| Multi-valued |
| Derived. |
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