Which user datagram protocol (UDP) port address do simple network management protocol (SNMP) agents use to send and receive management requests?

The Simple Network Management Protocol (SNMP) utilizes a specific User Datagram Protocol (UDP) port address to facilitate communication between SNMP agents and management systems. The standard port for SNMP is 161, which is utilized to send management requests and receive responses. This port standardization allows network management tools to effectively monitor and manage devices on the network, ensuring consistent communication.

The other port numbers listed align with different protocols; for instance, port 80 is associated with HTTP (HyperText Transfer Protocol), port 53 is used for DNS (Domain Name System) queries, and port 22 is designated for SSH (Secure Shell). Each of these protocols serves different purposes, which is why they are not relevant in the context of SNMP communication. Thus, 161 is the correct port number used for SNMP, making it essential for the management of networked devices.