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Entity Relationship Diagram Worksheet

Authored by simar kaur

Computers

Professional Development

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Entity Relationship Diagram Worksheet
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12 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

ERD stands for Entity Relationship Diagram.

true

false

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A tree can have many apples. An apple can belong to only one tree. This is an example of a(n)

one to many relationship

one to one relationship

many to many relationship

one to optional relationship

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The one to many relationship can best be described as a

business relationship

nuclear family relationship

Parent - Child relationship

Parent - Parent relationship

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A tree can have many apples. An apple can belong to only one tree. These two statements are examples of ...

business rules

entity mapping

presumptive modelling

Horticulture database standardization(HDS)

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If two tables have the same primary key then it is mostly likely

one to one relationship

one to many relationship

many to many relationship

a violation of referential integrity

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When creating a new table that solves the many-to-many relationship issue, which option below is a good way to handle the primary key?

use two or more fields to create a composite primary key

use the first field to create the Primary Key

use a non-key attribute as the primary key

you don't need to have a primary key in this table

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The many cardinality symbol always...

comes off the table with the foreign key

comes off the table with the primary key

comes off either table at the discretion of the developer

indicates the one side of the relationship

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