Question

1. Open Process Control (OPC):

1. Why do most SCADA vendors include OPC in their systems?
2. Describe, briefly, the concept of (and relationship between) OPC groups and items.

2. a. Describe a typical cyber attack that could be launced specifically against a Power Station SCADA system (not a network in general).                       

1. Discuss three security issues to be addressed in SCADA installations.                   
2. What is, in your opinion, the minimum (physical) placement for a firewall in a SCADA system? (Note: not configuration)

Answer 1

OPC : Open process control

a Why we adopt opc in SCADA

As for as new technologies are concerned the SCADA are adopting :

1 web technology, Active X, java etc

2 OPC as a means for communicating internally between the client and server modules.

It should thus possible to connect OPC complaint third-party to that SCADA PRODUCT.

b

2 a

2a

Issues

b