Database Management System (DBMS)

161. The heading of a relation is also referred to as ___________:

1. Relation schema
2. Intension
3. Both
4. None

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162. In relational model the body of the relation is referred to as ___________:

1. Extension
2. Criterion
3. Relation
4. None of these

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163. Which is the set of defined atomic values for an attribute:

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

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164. Which is the name of role played by a domain in the relation:

1. Relational schema
2. Domain
3. Attribute
4. Relation

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165. Which is made up of relation name and a list of attributes:

1. Relational schema
2. Domain
3. Attribute
4. Relation

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166. A ___________ is defined as the subset of the subset of the Cartesian product of domains:

1. Extension
2. Criterion
3. Relation
4. None of these

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167. SQL schema is how many types of relation schema may be defined:

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

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168. In a SQL schema may be defined as which types:

1. VIEWS
2. BASE RELATION
3. BOTH
4. NONE

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169. CAD stands for:

1. Computer aided design
2. Computer aided data
3. Computer aided database
4. None of these

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170. Which is refers to knowledge about the meaning of data:

1. Data types
2. Base relation
3. Semantic knowledge
4. All of these

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