Exam (elaborations)

Analyze the flow of data and information among disparate health information systems to support internal and external business processes I have been hired as a Manager by a local Physician office and entrusted with the responsibility of implementing Electr

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Course
ICS/SCADA

Institution
ICS/SCADA

Analyze the flow of data and information among disparate health information systems to support internal and external business processes I have been hired as a Manager by a local Physician office and entrusted with the responsibility of implementing Electronic Health Record (EHR). The EHR would be ...

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Uploaded on November 3, 2024
Number of pages 17
Written in 2024/2025
Type Exam (elaborations)
Contains Questions & answers

analyze the flow of data and information among dis

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ICS/SCADA Security Questions and
Correct Answers, 122 Q&A. 100% Correct.
Latest 2024/2025.
Impersonation attacks

Authentication

Eavesdropping attacks

Confidentiality

Modification attacks

Integrity

DOS attacks

Availability

Discretionary Access Control (DAC)

Used in most operating systems

As the owner, you control who has access to a file

You can modify at any time

Very flexible access control

Very weak security

Role-Based Access Control (RBAC)

You have a role in the company

Admin provides access based on the role of the user

In windows, we use groups to provide this kind of access control

Mandatory Access Control (MAC)

The OS limits the operation on an object

Based on security clearance levels

Every object gets a label such as confidential, secret, top secret, etc

Labeling of objects uses predefined rules

,Admin decides who gets what levels, users can't change the settings

ERP system

These systems, take data from subordinate systems, often across multiple sites or an enterprise, to
look at overall supply, production, and demand to manage work orders

Used in enterprise zone

ICS is rarely directly connected to this device

Level 5: Enterprise Zone

ERP systems are user here to understand and respond to supply and demand

Where the supply chain is managed

Usually exists at corporate or multi-site headquarters

Level 4: Site business planning and logistics

Enterprise servers are here

Represents IT systems used at each plant or facility to control the operation of the local facility

Monitors the performance at lower levels to understand the state of operations, performance
against production schedule, management of problems at the local plant, and updating enterprise
systems a level 5

ICS DMZ

Present at the level are replication servers, patch management, servers, engineering, workstations,
and configuration/change management systems

Level 3: Site manufacturing and operation control

usually contains SCADA's supervisory aspect, DCS view and control access, or control rooms with
view and monitoring, process events and trends, responding to alarms and events, managing uptime
and availability of the process with functions such as work order maintenance, and ensuring product
quality

Level 2: Area Supervisory Control

This is where the process cell of line-level functions primarily exist for local control over individual
areas of a process

ICS starts to appear here (PLCs and VFDs Variable Frequency Drives)

HMIs are the main system here

Level 1: Basic Control

, Primary location for PLCs and VFDs (Variable Frequency Drives)

Operators interact with set points and logic of the BPCS at this level to optimize plant operations

Also include sensors, actuators, relays, and other components that measure and report process
values to PLCs, DCSs, SCADA, and other components in level 1-5

Level 0: Process

A.K.A. Equipment Under Control

Includes drivers, motors, values, and other components that comprise the actual process

Integrity is paramount to safety

Basic Process Control System (BPCS)

Control the process within configurable limits known as set points

Provide live data to HMIs

ICS/SCADA

A collection of equipment, devices, communication methods that when you combine for the
foundational system, perform a specific task, delivery, service, or create a particular product

Typically covered long distance and include gas, power, and water distribution

SCADA

A combination of hardware and software that enables the automation of industrial processes by
capturing OT real-time data

Allows supervisory and control of plant both locally and remotely

Ability to log data for historical purposes

PLCs

Have functions like timing, counting, comparing, and processing of various analog signals

Microcontroller

Brain of the PLC

has Firmware using Ladder Logic

Factors to mitigate risk

Policies and procedures

Technology to ensure users are following policies and procedures

Residual Risk

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Exam (elaborations)

Analyze the flow of data and information among disparate health information systems to support internal and external business processes I have been hired as a Manager by a local Physician office and entrusted with the responsibility of implementing Electr

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