CAS-005 · Question #505
Engineers are unable to control pumps at Site A from Site В when the SCADA controller at Site A experiences an outage. A security analyst must provide a secure solution that ensures Site A pumps can…
The correct answer is D. Configure VPN concentrators inside the ОТ network segments at Site A and Site В and allow the. Configuring VPN concentrators inside the OT network segments allows secure, encrypted communication between Site A and Site B. This setup enables each SCADA controller to act as a backup for the other site’s pumps during outages, while being cost-effective compared to dedicated…
Question
Engineers are unable to control pumps at Site A from Site В when the SCADA controller at Site A experiences an outage. A security analyst must provide a secure solution that ensures Site A pumps can be controlled by a SCADA controller at Site В if a similar outage occurs again. Which of the following represents the most cost-effective solution?
Options
- AProcure direct fiber connectivity between Site A and Site В and limit its use to the critical SCADA
- BInstall backup SCADA controllers at each site, isolate them from the ОТ network, and assign
- CIsolate the ОТ environment by providing an air-gapped network segment. Place the SCADA
- DConfigure VPN concentrators inside the ОТ network segments at Site A and Site В and allow the
How the community answered
(38 responses)- A8% (3)
- B13% (5)
- C3% (1)
- D76% (29)
Explanation
Configuring VPN concentrators inside the OT network segments allows secure, encrypted communication between Site A and Site B. This setup enables each SCADA controller to act as a backup for the other site’s pumps during outages, while being cost-effective compared to dedicated fiber or deploying redundant controllers.
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