350-801 · Question #57
Which DHCP option must be set up for new phones to obtain the TFTP server IP address?
The correct answer is A. Option 66. DHCP Option 66 (TFTP Server Name) provides the IP address or hostname of the TFTP server to DHCP clients. Cisco IP phones use this option during boot to locate the TFTP server from which they download their configuration files and firmware. Cisco also supports the proprietary…
Question
Which DHCP option must be set up for new phones to obtain the TFTP server IP address?
Options
- AOption 66
- BOption 15
- COption 120
- DOption 6
How the community answered
(29 responses)- A93% (27)
- B3% (1)
- C3% (1)
Explanation
DHCP Option 66 (TFTP Server Name) provides the IP address or hostname of the TFTP server to DHCP clients. Cisco IP phones use this option during boot to locate the TFTP server from which they download their configuration files and firmware. Cisco also supports the proprietary Option 150 (TFTP Server Address, a Cisco extension), but Option 66 is the standard. Option 6 provides DNS server addresses, Option 15 provides the domain name, and Option 120 provides SIP server addresses-none of which fulfill the TFTP role for phone provisioning.
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