MCQOPTIONS
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MCQOPTIONS
This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Database knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
WHEN_THE_VALUES_IN_ONE_OR_MORE_ATTRIBUTES_BEING_USED_AS_A_FOREIGN_KEY_MUST_EXIST_IN_ANOTHER_SET_OF_ONE_OR_MORE_ATTRIBUTES_IN_ANOTHER_TABLE,_WE_HAVE_CREATED_A(N):?$ |
| A. | Transitive Dependency |
| B. | Insertion Anomaly |
| C. | Referential Integrity Constraint |
| D. | Normal Form |
| Answer» D. Normal Form | |
| 2. |
Which_of_the_following_is_not_a_restriction_for_a_table_to_be_a_relation?$ |
| A. | The cells of the table must contain a single value |
| B. | All of the entries in any column must be of the same kind |
| C. | The columns must be ordered |
| D. | No two rows in a table may be identical |
| Answer» D. No two rows in a table may be identical | |
| 3. |
Every time attribute A appears, it is matched with the same value of attribute B, but not the same value of attribute C. Therefore, it is true that? |
| A. | A -> B |
| B. | A -> C |
| C. | A -> (B,C) |
| D. | (B,C) -> A |
| Answer» B. A -> C | |
| 4. |
Every constraint on the table is a logical consequence of the table’s$ |
| A. | Fourth normal form |
| B. | Fifth normal form |
| C. | Domain/key normal form |
| D. | None of the Mentioned |
| Answer» D. None of the Mentioned | |