On which of the following devices would you issue the factory-reset command to perform a factory reset on the
device?

A.
Cisco Codec C60

B.
Cisco TelePresence MX

C.
Cisco TelePresence System 500

D.
Cisco VCS

Explanation:
You would issue the factory-reset command on a Cisco TelePresence Video Communication Server (VCS) to
perform a factory reset on the device. After you log in as root and issue the factory-reset command, you will be
asked whether you want to keep option keys, the IP configuration, Secure Shell (SSH) keys, Secure Sockets
Layer (SSL) certificates and keys, root and admin passwords, and log files.
You would not issue the factory-reset command on Cisco TelePresence MX, EX, SX, or C-series devices. To
reset these devices, you should issue the xCommand SystemUnit Factory-reset Confirm: Yes command. You
might want to perform a factory reset if there is a severe problem with the video system. If possible, you should
back up log files and the current configuration before proceeding with a factory reset.
The following items are deleted when you perform a factory reset:
Call logs
Custom backgrounds
Ring tones
Certificates
Local phonebook
In addition, all system parameters are set to their default values.You would not issue the factory-reset command on a Cisco TelePresence System 500. The utils system factory
reset command will set a Cisco TelePresence System 500 to the factory default settings. In addition, the boot
slot will be set back to the factory slot. After issuing the command, you will be prompted for confirmation, after
which the system will be reset and restarted.
Alternatively, the utils system factory init command will set the Cisco TelePresence System 500 to the factoryinitialized configuration. However, the system will remain in its current boot slot. After issuing the command, you
will be prompted for confirmation, after which the system will be initialized and restarted.

Cisco: Cisco TelePresence Video Communication Server, Administrator Guide, Software version: X8.1:
Restoring default configuration (factory reset) (PDF)