What is the UDP port number used by SNMP managers?

The UDP port number used by SNMP (Simple Network Management Protocol) managers is 161. SNMP is a protocol used for network management, allowing for monitoring and management of network devices. The SNMP manager typically listens for incoming messages from SNMP agents on this port.

Port 162 is used for the SNMP trap messages, which are sent from agents to the manager to report notifications or alerts, but it is not the port used by managers to send requests. Port 69 is associated with the Trivial File Transfer Protocol (TFTP), and port 514 is used for the Syslog protocol. Therefore, 161 is the correct answer for SNMP managers.