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Data modelling

Computers

University

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Data modelling
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Property an attribute that identifies what type data can stored in that attribute

Entity

Data type

Entity occurrence

Domain

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Candidate key used to uniquely identify a single instance

Alternate key

Concatenated key

Candidate key

Primary key

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The number of entities that participate in a relationship is referred to:

Degree

Cardinality

Domain

Sub setting criteria

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Primary key of an entity that is used in another entity to identify instances of a relationship

Candidate key

Foreign key

Concatenated key

Alternate key

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An entity that inherits its primary key from more than one other entity

Parent entity

⦁ Entity occurrence

Child entity

Associative entity

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Data analysis technique that organises data into groups to form non-redundant, stable, flexible, and adaptive entities

⦁ Data analysis

⦁ Generalization

⦁ Normalization

⦁ Data modelling

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

⦁ Apply 1NF, 2NF,3NF definitions

⦁ Normalized data model

⦁ Normalized data model

⦁ Fully attributed data model

⦁ Context data model

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