A Chemical Plan Wants to Upgrade the Industrial Control System

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?

A) The network administrators have no knowledge of ICS
B) The ICS is now accessible from the office network
C) The ICS does not support the office password policy
D) RS422 is more reliable than Ethernet

Correct Answer:

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