Quick Answer

The answer is ios_l3_interfaces, which configures Layer 3 interface properties such as IP addresses and encapsulation. This is correct because the cisco.ios Ansible modules are purpose-built for specific network automation tasks: ios_config pushes raw configuration commands to the device, ios_command executes show commands and retrieves output, ios_facts gathers device facts like hardware and software details, ios_vlans manages VLAN creation and deletion, and ios_l3_interfaces specifically handles Layer 3 interface attributes like IP addressing and routing protocol assignments. On the ENCOR 350-401 exam, this drag-and-drop question tests your ability to match each module to its exact function, a common trap being confusion between ios_config and ios_l3_interfaces—remember that ios_config is a generic command pusher, while ios_l3_interfaces is a structured module for Layer 3 interfaces only. A helpful memory tip is to think of the “L3” in the module name as a direct cue for “Layer 3,” so when you see an interface IP address or OSPF network statement, ios_l3_interfaces is your answer.