It is configured in VTP server mode.
STP is automatically enabled.
All switch ports are assigned to VLAN1.
Default
Default
0x2102
Online default configuration is not very relevant a question. If you want to set Firefox as your default browser then go the top menu in Firefox. click tools ->options ->advanced ->general Tab ->Always Check to see if firefox is default browser ( tick this option)
When a router boots up, it follows a default order to search for startup configuration information. First, it checks the non-volatile memory (NVRAM) for the startup configuration file, typically named "startup-config." If it doesn't find a valid configuration there, it may look for a configuration file in a TFTP server, and if that fails, the router will proceed with its default settings, often leading to a mode where no configurations are applied.
The reset button in a router let you remove all the configuration you do and gives you the default configuration from factory.
Which default EIGRP configuration must be modified to allow an EIGRP router to advertise subnets that are configured with VLSM
I really think this is not possible.
The "default gateway" is your router.
NVRAM, TFTP,Console
Single drive
Reload the device.