Which ports are used by SNMP?

A.
UDP ports 161 and 162

B.
UDP ports 20 and 21

C.
TCP ports 161 and 162

D.
TCP ports 20 and 21

Explanation:
UDP Ports 161 and 162. Port 161 is used for most calls, while port 162 is used for traps.
Incorrect Answers:
B: FTP uses TCP on ports 20 and 21.
C: SNMP uses UDP protocol, not TCP.
D: Ports 20 and 21 are sued for FTP.