In an E-R Diagram, A(n)________ on a Line Means That

question 65

Multiple Choice

In an E-R diagram, a(n) ________ on a line means that at least one entity type of that type is required.

• A) small oval
• B) vertical bar
• C) arrow
• D) triangular block

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Definitions:

Automated Phone Systems

Telecommunication systems that manage calls without human intervention, often used in customer service to route calls or provide pre-recorded information.

Interactive Pager

A pager designed for two-way communication. The pager screen displays a printed message and allows the physician to respond by way of a mini keyboard.

Pager Types

Various categories or models of pagers, which are electronic devices used for sending or receiving messages.

TDD Device

Telecommunication device for the deaf; a device that allows individuals who are deaf or hard of hearing to communicate over the telephone through text.