Multiple choice technology

What is default port used by CISCO IP phone for tftp file download?

  1. tcp 69

  2. udp 69

  3. tcp 59

  4. udp 59
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

B is correct because TFTP (Trivial FTP) is a UDP-based protocol that uses port 69 by default - Cisco IP phones use TFTP over UDP to download configuration and firmware files. A is wrong because TFTP doesn't use TCP. C and D are incorrect because port 59 is not a standard TFTP port (TCP or UDP).

Keep practicing — related questions