Explanation/Reference:
When an underlying interface of an IPMP group fails, a typical solution would be to replace the failed interface by attaching a new NIC. RCM records the configuration information associated with any NIC that is detached from a running system. If you replace a failed NIC with an identical NIC, then RCM automatically configures the interface according to the persistent configurations that had been previously defined by using the ipadm command.
Incorrect:
Not A, not D: You can replace a failed NIC with a different NIC, provided that both are the same type, such as Ethernet. In this case, RCM plumbs the new interface after it is attached. If you did not use customized link names when you first configured your interfaces, then you will have to configure the new NIC before you can add the interface to the IPMP group.
Not C: devfsadm, devfsadmd- administration command for /dev and /devices Note:
* 1. On the system with the IPMP group configuration, assume the Primary Administrator role or become superuser.
2. Display the test address configuration
3. Remove the physical interface.
4. Replace the physical interface.