IT 369 Final Exam Questions with Accurate (A+)
Answers
What does SCADA stand for? - ✔✔Supervisory Control and Data Acquisition
What do ICS, DCS and PCS stand for? - ✔✔ICS - industrial control systems
DCS - distributed control systems
PCS - process control systems
What is HSPD-7 and what did it do? - ✔✔Homeland security presidential directive 7. establishes
policy for federal agencies to identify and prioritize US critical infrastructure and and other
resources against terrorist attacks
What are some resources or Critical infrastructure listed under HSPD-7? - ✔✔Utilites, Nuclear
facilities, bulk electronics, chemical facilities.
What do scadas provide? - ✔✔real-time data on production, reduces the operation cost.
Why are scadas dangerous? - ✔✔They use standards and are very interconnected allowing for
many vulnerabilities throughout the network.
,What do some SCADA systems control? - ✔✔Water and wastewater, electrical utilities, gas
pipelines, etc. Important stuff.
What are some scada components? - ✔✔Master terminal
remote terminal
human/machine interface
communication
What are some attributes of a SCADA? - ✔✔highly distributed
geographically separated
centralized control
field devices that can control more local parts of the system
What is a DCS or distributed control system? - ✔✔a supervisor control of several combined
systems that are local.
Uses programmable logic controllers and feedback loops
, Ex: control center for water, gas, and electric in a city.
What is a programmable logic controller? - ✔✔computer solid state device
controls industrial equipment
regulates flow of something
Location differences: SCADA and DCS and PLC? - ✔✔SCADA - dispersed across globe
DCS and PLC - factory centered (local)
Communication differences: SCADA and DCS and PLC? - ✔✔SCADA - long distance and slow
DCS and PLC - high speed, local are networks
Control differences: SCADA and DCS and PLC? - ✔✔SCADA - supervisory level
DCS and PLC - close feedback loops
What are SCADAs so important? - ✔✔CI's are 80-90% privately owned, but very important to
nation so SCADA's provide a level or required oversight
Answers
What does SCADA stand for? - ✔✔Supervisory Control and Data Acquisition
What do ICS, DCS and PCS stand for? - ✔✔ICS - industrial control systems
DCS - distributed control systems
PCS - process control systems
What is HSPD-7 and what did it do? - ✔✔Homeland security presidential directive 7. establishes
policy for federal agencies to identify and prioritize US critical infrastructure and and other
resources against terrorist attacks
What are some resources or Critical infrastructure listed under HSPD-7? - ✔✔Utilites, Nuclear
facilities, bulk electronics, chemical facilities.
What do scadas provide? - ✔✔real-time data on production, reduces the operation cost.
Why are scadas dangerous? - ✔✔They use standards and are very interconnected allowing for
many vulnerabilities throughout the network.
,What do some SCADA systems control? - ✔✔Water and wastewater, electrical utilities, gas
pipelines, etc. Important stuff.
What are some scada components? - ✔✔Master terminal
remote terminal
human/machine interface
communication
What are some attributes of a SCADA? - ✔✔highly distributed
geographically separated
centralized control
field devices that can control more local parts of the system
What is a DCS or distributed control system? - ✔✔a supervisor control of several combined
systems that are local.
Uses programmable logic controllers and feedback loops
, Ex: control center for water, gas, and electric in a city.
What is a programmable logic controller? - ✔✔computer solid state device
controls industrial equipment
regulates flow of something
Location differences: SCADA and DCS and PLC? - ✔✔SCADA - dispersed across globe
DCS and PLC - factory centered (local)
Communication differences: SCADA and DCS and PLC? - ✔✔SCADA - long distance and slow
DCS and PLC - high speed, local are networks
Control differences: SCADA and DCS and PLC? - ✔✔SCADA - supervisory level
DCS and PLC - close feedback loops
What are SCADAs so important? - ✔✔CI's are 80-90% privately owned, but very important to
nation so SCADA's provide a level or required oversight
