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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?

A UDP 161.

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.

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