Your machine's IP address used to function, but it's only got the localhost "lo" entry now. What three client-mode commands could you possibly use to get a new DHCP address?

dhcpd is the DHCP server daemon, which assigns IP addresses to clients, not a client-mode command used to obtain an address for the local machine.

ipconfig is primarily a command-line tool found on Windows systems to display and configure network interfaces, but it is not a standard DHCP client command on Linux; the equivalent Linux command for displaying config is ip addr or ifconfig.

dhclient is a commonly used DHCP client program in many Linux distributions to obtain an IP address and other network configuration details from a DHCP server.

pump is another DHCP client, primarily used in older Red Hat-based systems, to manage network interface configuration via DHCP.

dhcpcd is a popular DHCP client daemon that runs in the background to automatically configure network interfaces with DHCP and can be used to renew leases.