When Data Has a Unique Identifier Included as Part of the Data,this

question 2

Multiple Choice

When data has a unique identifier included as part of the data,this is called a ________ key.

• A) primary
• B) natural
• C) composite
• D) normal

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Definitions:

Green 9-pin

A standard connector used for diagnostic ports on heavy-duty vehicles, allowing access to the vehicle's data bus.

J1939 Bus

A term used interchangeably with J1939 Data Backbone, referring to the communication network based on the J1939 standard in automotive and industrial vehicles.

Bus Connectors

Components that are used to link individual bus bars or to connect devices to a bus system, facilitating communication or power transmission.

J1939 Data Bus

A communications network protocol based on CAN (Controller Area Network), designed for heavy-duty vehicles to exchange electronic information.