Which of the following statements are true? (Select 2 choices.)

A.
A reset is faster than a restart.

B.
A reset restores the IP phone to the factory default settings.

C.
You can reset an IP phone by pressing ##*## on the phone’s keypad.

D.
You can restart an IP phone by pressing ##*## on the phone’s keypad.

E.
An IP phone reset contacts the TFTP server.

F.
An IP phone restart contacts the TFTP server.

Explanation:
Both an IP phone reset and an IP phone restart will contact the Trivial File Transfer Protocol (TFTP) server to
check for and download phone configuration updates. A Cisco IP phone can be reset by issuing the reset
command in ephone configuration mode on a Cisco Unified Communications Manager Express (CME) router
or by pressing the **#** key sequence at the Settings menu of an IP phone. You can access the Settings menu
of an IP phone by pressing the settings button on the phone’s keypad.
A Cisco IP phone can be restarted by issuing the restart command in ephone configuration mode on a CME
router. When you restart an IP phone, the phone will unregister and reregister with the Cisco call processing
platform in addition to contacting the TFTP server. In the Cisco Unified Communications Manager (UCM)
graphical user interface (GUI), you can restart a phone by clicking Device > Phone > Restart.
You must reset a phone after performing the following tasks:
-Updating the phone’s firmware
-Modifying the Dynamic Host Configuration Protocol (DHCP) scope
-Changing the IP address of the TFTP server
-Changing Uniform Resource Locators (URLs)
-Changing the date and time settings
-Changing the language displayed on the phone
-Changing the call progress tones for the phone
-Changing the voice mail access number
You can either reset or restart a phone after performing the following tasks:
-Adding or deleting a phone button
-Associating a button with a new ephone-dn
-Modifying an extension on an ephone-dn
-Modifying speed-dial numbers on an ephone
-Enabling call park
Both the reset command on a CME router and the **#** key sequence on an IP phone perform a hard reset ofthe phone, similar to powering down the device and powering it back up again. In the UCM GUI, you can reset
a phone by clicking Device > Phone > Reset. When you reset the IP phone, the phone contacts the DHCP
server to obtain IP configuration information, including the IP address of the TFTP server. The phone then
contacts the TFTP server and downloads the most recent phone configuration information. The phone will also
unregister and reregister with the Cisco call platform.
A reset is not faster than a restart. A restart is a soft reboot of the phone, which causes the phone to boot much
quicker than a reset. When you restart an IP phone, the phone does not contact the DHCP server to obtain new
IP configuration information. However, it does contact the TFTP server to download the most recent phone
configuration information.
A reset does not restore the IP phone to the factory default settings. When an IP phone is restored to the
factory default settings, any configuration changes that might be stored on the IP phone itself are lost. The
method you use to restore a Cisco IP phone to factory default settings varies by phone model.
You can neither reset nor restart an IP phone by pressing ##*## on the phone’s keypad. The proper keypad
sequence for resetting an IP phone is **#**. There is no similar keypad sequence for restarting an IP phone.

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucme/admin/configuration/manual/cmeadm/
cmereset.html#pgfId-1009231