Question 1100
A branch design for Orion Shipping has two requirements: (1) learn a device MAC dynamically and save it as a secure configuration entry, and (2) avoid allowing untrusted access ports to forward forged DHCP server responses. Which plan correctly handles both requirements?
Explanation
Correct Answer
Both outcomes are covered: (1) Sticky learning converts learned secure MACs into addresses retained in running configuration. (2) Enable DHCP snooping globally and on the protected VLAN; trust only approved server/relay uplinks while leaving user-facing ports untrusted. On supported Cisco switches, trusted interfaces alone do not activate snooping, and a rogue server response on an untrusted access port must be dropped. Neither action is a substitute for the other.
Incorrect Answers
The second step covers (2), but the first addresses explain what ESP protects in common IPsec tunnels. ESP can encrypt payloads and provide authenticated integrity for protected packets. It leaves outcome (1) unfulfilled. An uplink trust assignment alone does not activate DHCP snooping globally and for the client VLAN.
The first step covers (1), but the second addresses detect active port scanning that precedes unwanted access attempts. Scanning probes service exposure and can be an early indicator of attempted intrusion. It leaves outcome (2) unfulfilled.
Neither step is the requested pair: Use an approved certificate-based device identity is for authenticate a device without managing a shared human password, and Run periodic phishing-awareness training and simulated exercises is for reduce employee susceptibility to credential phishing. Certificates bind cryptographic credentials to a trusted issuing authority and verified identity. The proposed plan misses the two stated outcomes.