Your manager has asked you to perform basic security hardening on your HPE Aruba Networking...

The correct answer is A. Disable SSH and HTTPS in the data plane. After connecting the out-of-band management, or OOBM, interface, management access should be restricted to the management plane rather than left available through user/data-plane interfaces. HPE Aruba Networking AOS-CX hardening guidance explains that the default VRF is associated with non-management interfaces, while the management VRF is associated with the dedicated management interface. It also lists SSH on TCP 22 and HTTPS/Web UI on TCP 443 as management services enabled by default. For hardening, if OOBM is being used, management services such as SSH and HTTPS should be disabled or restricted from the default/data VRF so users cannot manage the switch through production-facing ports. Option B is incorrect because disabling SSH and HTTPS in the management plane would remove the secure OOBM management path. Option C is incorrect because Telnet and HTTP are insecure protocols. Option D is incorrect because enabling SSH and HTTPS in the data plane increases the exposed management surface.