Scan the server 2 - tftp and snmp

Cyber Security Penetration Testing Student (SP)
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1

In Scan the server 2, in Footprinting & Scanning. Why can we assume that it is a tftp server?
In the solution just say “Given that we have discovered that UDP ports 177 and 234 are running a DNS and SNMP server respectively, we can assume that port 134 is running the TFTP server.”
I looked up for a relation but i couldnt find anything.

Thank you

2

I am looking for an answer as well

3

Still looking for the answer

4

Perhaps because ports 177 and 234 are running the services commonly associated with those ports, we can assume all of the open ports on this machine are running the common service associated with it.

5

Did you find any answer on how the output is related to identifying the service as TFTP?