Database Management System (DBMS)

151. How many types of record based logical models:

1. 1
2. 2
3. 3
4. 4

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152. Which are the types of record based logical models:

1. Relational
2. Network
3. Hierarchical
4. All of these

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153. E-R model entities and their relationship are corresponded as ___________ dimensional tables:

1. 2
2. 4
3. 5
4. 6

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154. Which are the not properties of a relation are:

1. Row order are insignificant
2. Column order are insignificant
3. The values are atomic
4. None of these

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155. Which is a primary domain:

1. Domain
2. Data
3. Register
4. Models

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156. In which year the relational model introduced:

1. 1969
2. 1970
3. 1971
4. 1972

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157. In which person introduced the relational model:

1. E.F. codd
2. F.F. codd
3. E. E. codd
4. None of these

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158. How many components in relational model:

1. 1
2. 2
3. 3
4. 4

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159. Which components are use in make up the relational model:

1. Structural
2. Manipulative
3. Integrity
4. All off these

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160. Who is represent a data base as a collection of relation value:

1. Data model
2. Relation model
3. Record based logical model
4. All of these

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