Refer to the exhibit. An administrator must enable RESTCONF access to a router. Which two commands or command sets must be added to the existing configuration? (Choose two.)

The `aaa authentication login default local` command configures the device to authenticate users against its local database for login attempts, which is crucial for securing RESTCONF access.

The `restconf` command directly enables the RESTCONF feature, allowing programmatic access to the device's configuration and operational data via RESTCONF API.

The `line vty 0 15` command configures virtual terminal lines, primarily for SSH or Telnet access, not for directly enabling the RESTCONF service.

The `netconf-yang` command enables NETCONF, which is a different network management protocol, distinct from RESTCONF.

The `username restconf privilege 0` command creates a local user account but does not enable the RESTCONF service or configure AAA authentication for it.