ISA/IEC 62443 Models

Question 1

Asset Model

Answer 1

Describes relationships between assets within an industrial automation and control system

Question 2

Reference Architecture Model

Answer 2

Describes the configuration of assets

Question 3

Zone Models Groups

Answer 3

Reference architecture elements according to defined characteristics (zone and conduits)

Question 4

Models

Answer 4

Provide a context for the definition of policies, proceures, and guidelines, applied to the assets.

Question 5

Reference Model Levels (ANSI/ISA 95)

Answer 5

• Level 4: Business Planning & Logistics
• Level 3: Manufacturing Operations Management
• Level 2: Monitoring supervisory control and automated control of the production process
• Level 1: Sensing the production process, manipulating the production process
• Level 0: The actual production process

Question 6

Reference Model For ISA99 Standards

Answer 6

• Level 4: Enterprise Systems (Business Planning & Logistics)
• Level 3: Operations Management
• Level 2: Supervisory control
• Level 1: Basic Control. Safety and Protection
• Level 0: The actual production process

Question 7

Security Zones

Answer 7

Is a logical grouping of physical, informational, and application assets sharing common security requirements.
* Zones within zones, subzones
* Layered security, defense-in-depth
* Has a border/boudary between includen and excluded elements
* Security policy of zone typically enforced by a combination of mechanisms both at the zone edge and within the zone.

Question 8

Conduit

Answer 8

Is a logical grouping of communication assets that protects the security of the channels it contains.

A conduit is a logical grouping of communication channels, connecting two or more zones, that share common security requirements

Question 9

Definition

Provides the overall conceptual basis

Answer 9

Reference Model

Question 10

Definition

A logical grouping of physical, informational, and application assets sharing common security requirements

Answer 10

Security Zone

Question 11

Definition

Describes the configuration of assets

Answer 11

Zone Model Group

Question 12

Definition

References architecture elements according to defined chareacterisitcs (zone and conduits)

Answer 12

Reference Architecture

Question 13

Definition

A cable or wireless that connects zones for communication purposes

Answer 13

Conduit

Question 14

Which type of model provide the overall conceptual basis?

Answer 14

Reference Model

Question 15

True of False

Defense-in-Depth involves applying multiple countermeasures in a layered or stepwise manner.

Answer 15

True

Question 16

True or False

Reference architecture models describes the configuration of assets

Answer 16

True

Question 17

What is a logical grouping of physical, informational, and application assets sharing common security requirements?

Answer 17

Security Zone

Question 18

What is a logical grouping of communication channels, connecting two or more zones, that share common security requirements called?

Answer 18

Conduits