You are asked to troubleshoot networking issues on an unfamiliar system. Select the correct command to display what network devices are installed.

In Oracle Solaris 11, the dladm show-phys command is the standard and correct method to display all installed physical network devices. It provides a clear mapping between the physical hardware devices (such as network interface cards) and their corresponding datalink names, along with their current state, media type, and speed. This command replaces older legacy methods and is essential for troubleshooting hardware-level networking issues on an unfamiliar system to determine exactly what physical interfaces are available.

A: ifconfig -a displays configured IP interfaces, not the underlying physical hardware devices, and is deprecated in Solaris 11 for configuration. B: dladm show-dev is not a valid command in Oracle Solaris 11; show-phys is the correct subcommand. D: dladm show-ether displays Ethernet-specific parameters (like MAC addresses) for datalinks, not the general list of installed physical devices. E: netadm is used for managing Network Auto-Magic (NWAM) profiles, and show-dev is not a valid subcommand. F: netadm show-ether is an invalid command; netadm manages network configuration profiles, not Ethernet device properties.

Oracle Solaris 11.1 Administration: Network Interfaces and Network Virtualization, Chapter 2: Administering Datalink Configuration, Section: "Displaying Information About Physical Attributes of Datalinks". (Oracle Official Documentation)