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A network engineer is installing new switches in the data center to replace existing infrastructure. The previous network hardware had administrative interfaces that were plugged into the existing network along with all other server hardware on the same subnet. Which of the following should the engineer do to better secure these administrative interfaces?
Correct Answer: A
Comprehensive and Detailed Explanation From Exact Extract: To better secure administrative interfaces, the best practice is to isolate them from the production network by connecting the management ports to a separate, dedicated management network. This prevents unauthorized access from devices or users on the production subnet and reduces the attack surface. Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide - under "Securing Network Infrastructure": "Management interfaces should be placed on a separate out-of-band management network, providing physical and logical separation from user and data traffic." This ensures that only trusted devices on the management network can access the administrative interfaces. Other options: * B. Disabling unused ports is good practice but does not address the segregation of management traffic. * C. Placing admin interfaces and production traffic on the same VLAN exposes them to potential internal threats. * D. Firmware upgrades are important for security patches but do not isolate the interface.