McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Computer Science Engineering (CSE) , Bachelor of Science in Computer Science FY (BSc CS) , Bachelor of Science in Computer Science SY (BSc CS) , Bachelor of Science in Information Technology SY (BSc IT) , Bachelor of Computer Applications (BCA) .
Chapters
| 1201. |
Relational calculus is a |
| A. | Procedural language. |
| B. | Non- Procedural language. |
| C. | Data definition language. |
| D. | High level language |
| Answer» B. Non- Procedural language. | |
| 1202. |
In a relational database a referential integrity constraint can be specified with the help of |
| A. | primary key |
| B. | foreign key |
| C. | secondary key |
| D. | none of the above |
| Answer» B. foreign key | |
| 1203. |
A super key is a set of one or more attributes that, taken collectively, allow us |
| A. | to identify uniquely an entity in the entity set |
| B. | to make the key most powerful for faster retrieval |
| C. | to increase effectiveness of database access |
| D. | none of the above |
| Answer» A. to identify uniquely an entity in the entity set | |
| 1204. |
4NF is designed to cope with: |
| A. | Transitive dependency |
| B. | Join dependency |
| C. | Multi valued dependency |
| D. | None of these |
| Answer» C. Multi valued dependency | |
| 1205. |
A relational database developer refers to a record as |
| A. | a criteria. |
| B. | a relation. |
| C. | a tuple. |
| D. | an attribute. |
| Answer» C. a tuple. | |
| 1206. |
The relational model feature is that there |
| A. | is no need for primary key data. |
| B. | is much more data independence than some other database models. |
| C. | are explicit relationships among records. |
| D. | are tables with many dimensions. |
| Answer» B. is much more data independence than some other database models. | |
| 1207. |
SET concept is used in : |
| A. | Network Model |
| B. | Hierarchical Model |
| C. | Relational Model |
| D. | None of these |
| Answer» A. Network Model | |
| 1208. |
Relational Algebra is |
| A. | Data Definition Language . |
| B. | Meta Language |
| C. | Procedural query Language |
| D. | None of the above |
| Answer» C. Procedural query Language | |
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