You have been tasked with configuring a device that will be monitored with an SNMP agent and manager. When polling the agent, what port will the SNMP manager use?

UDP port 161 is used by the Simple Network Management Protocol (SNMP). User Datagram Protocol (UDP) is a connectionless protocol that does not guarantee data packet delivery and has a lower network overhead than Transmission Control Protocol (TCP), a connection-oriented protocol. IMAP operates on port 143.