CISSP · Question #947
CISSP Question #947: Real Exam Question with Answer & Explanation
The correct answer is B: The ICS is now accessible from the office network. The greatest impact on security for the network is that the ICS is now accessible from the office network. This means that the ICS is exposed to more potential threats and vulnerabilities from the internet and the office network, such as malware, unauthorized access, data leakage
Question
A chemical plan wants to upgrade the Industrial Control System (ICS) to transmit data using Ethernet instead of RS422. The project manager wants to simplify administration and maintenance by utilizing the office network infrastructure and staff to implement this upgrade. Which of the following is the GREATEST impact on security for the network?
Options
- AThe network administrators have no knowledge of ICS
- BThe ICS is now accessible from the office network
- CThe ICS does not support the office password policy
- DRS422 is more reliable than Ethernet
Explanation
The greatest impact on security for the network is that the ICS is now accessible from the office network. This means that the ICS is exposed to more potential threats and vulnerabilities from the internet and the office network, such as malware, unauthorized access, data leakage, or denial- of-service attacks. The ICS may also have different security requirements and standards than the office network, such as availability, reliability, and safety. Therefore, connecting the ICS to the office network increases the risk of compromising the confidentiality, integrity, and availability of the ICS and the critical infrastructure it controls.
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