A Vertical Network

question 23

Multiple Choice

A vertical network:

• A) centers on some common hobby, interest, or characteristic that draws members to the site.
• B) illustrates that most nodes in a social graph are not directly linked to one another-instead they are indirectly connected via neighbors.
• C) offers a relatively small number of items to buyers who tend to be loyal to these outlets.
• D) enables anyone to participate without registration or identification.
• E) sets forth expectations for user behavior as well as for the host or governing body.

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Definitions:

Multivalued Field

Refers to a database field that can hold more than one value, contrary to the principle of atomicity in database design.

Distinct

Distinct refers to something that is clearly different or unique in comparison to other items, characteristics, or entities.

Make-table Query

A type of database query that creates a new table and populates it with data selected from one or more existing tables.

Append Query

A database query that adds the results of a selection to an existing dataset, rather than creating a new one.